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		#		2015-02-09 (Version 2.1.8 submitted to cran)
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--- Package re-built under latest R release (R-3.1.2)

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		#		2013-08-21 (Version 2.1.7 submitted to cran)
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--- Package re-built under latest R release (R-3.0.1)

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		#		2013-01-07 (Version 2.1.6 submitted to cran)
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--- Fixed a bug that would prevent the prediction region to be plot.

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		#		2012-12-06 (Version 2.1.5 not published)
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--- Package re-built under latest R release (R-2.15.2)

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		#		2012-07-23 (Version 2.1.4 submitted to cran)
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--- Updates brought to the vignette.
--- Renamed "Confidence region" as "Credible region".

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		#		2012-07-11 (Version 2.1.3 submitted to cran)
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--- Fixed a problem where the vignette was not appearing on cran.


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		#		2012-07-11 (Version 2.1.2 not published)
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--- Fixed some portability issues for sparc-sun-solaris2.10 platform.

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		#		2012-07-10 (Version 2.1.1 submitted to cran)
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--- Added a vignette.

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		#		2012-07-03 (Version 2.1.0 submitted to cran)
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--- Added missing arguments in various examples provided in the help files that prevented these examples to run correctly.
--- Fixed some portability issues.

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		#		2012-05-16 (Version 2.0.95 not published)
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--- Fixed a bug were the default value of "chain" argument in the 'HSROCSummary' function would cause the function to not create history plots.
--- Added arguments to the 'HSROCSummary' function to allow user to select the truncation limits for the SROC curve creation.

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		#		2012-05-10 (Version 2.0.9 not published)
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--- Added the 'region_level' argument to 'HSROCSummary' function to allow user to select the level of credible/prediction for the credible/prediction region.
--- Following has been added to the 'HSROCSummary' function.  If a Gold Standard is assumed, the individual study estimates are ploted along with the SROC curve if argument 'plot.ind.studies' is set to TRUE.  If an imperfect reference standard is assumed, the estimates from the model are ploted along with the SROC curve if argument 'plot.ind.studies' is set to TRUE. 
--- Updated references that appear in the help files for 'HSROC' and 'HSROCSummary' functions.

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		#		2012-05-04 (Version 2.0.8 not published)
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--- Options to draw credible and prediction regions have been added to the Summary function 'HSROCSummary'  


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		#		2012-04-18 (Version 2.0.7 not published)
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--- If existing results are detected in the working directory, HSROC function now asks if user wants to overwrite them  


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		#		2012-04-10 (Version 2.0.6 not published)
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--- Replaced the following in HSROCSummary function : sd("matrix") by apply("matrix", 2, sd).
	Prior this change, R would return a warning regarding sd(<matrix>) being deprecated.  


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		#		2012-03-21 (Version 2.0.5 submitted to Cran)
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--- HSROC function displays a warning if there are chances that the maximum memory allocation be attained.  



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		#		2012-03-21 (Version 2.0.0 not published)
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--- HSROC function now writes every posterior estimate in binary files rather than text files
--- HSROCSummary function reads binary files created by HSROC to calculate estimates rather than the old text files provided by HSROC



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		#		2012-03-05 (Version 1.5.6 not published)
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--- Added error messages to break the Gibbs sampler loop once NaN values are being generated.
--- Attempt at fixing bugs regarding the posterior estimate of beta parameter generating some Nan values at "random time" during simulation
--- In the creation of the SROC curve, the program was going through 90% of the total range of the credible interval of THETA and at each point calculating S and C.  The range has now being increased to 95%

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		#		2012-02-22 (Version 1.5.5 not published)
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--- Attempt at fixing bugs regarding the program still running while NaN values are being generated

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		#		2012-02-07 (Version 1.5.0 not published)
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--- Implemented the Gibbs sampler in C++
--- Remove a feature where the same cutoff could be used for all studies

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		#		2011-10-19 (Version 1.1.0)
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--- Renamed the "i" argument of the HSROCSummary function to a more meaningful one : "iter.keep"

--- Changed the default values of arguments prior_LAMBDA, prior_THETA and prior_beta of function HSROC to reflect the narrower priors used in the paper.

--- Changed the TP, FP, FN, TN labels of the In.house and MRI dataset to ++, +-, -+, --

--- Fixed the trace and density plot titles for reference standard parameters.  

--- Lowered the number of studies of the In.house dataset from 12 to 11 by removing the Parandaman study



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		#		2011-07-07 (version 1.0.7 not published)
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--- Brought correction to the Metropolis-Hasting algorithm (beta parameter).  

--- Brought correction to the truncation of the full conditional distribution of beta.



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		#		2011-06-30 (version 1.0.65 not published)
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-- Changed the range of the latent variable r_ij to depend on LAMBDA and beta



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		#		2011-06-29 (version 1.0.6 not published)
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--- Changed range of the latent variable r_ij




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		#		2011-06-27 (version 1.0.5 not published)
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--- It is now possible to bound the alpha i and theta i when creating a dataset with the 'simdata' function through the range.L and range.T arguments.

--- Fixed a bug regarding the multiple chain trace plots.  


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		#		2011-06-20 (version 1.0.11 not published)
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--- Changed range of the latent variable r_ij



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		#		2011-06-17 (version 1.0.1 not published)
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--- Added posterior predictive values of sensitivity and specificity of a new study that has not yet taken place.

--- Added the possibility to put prior on sigma (noted "sd"), sigma_squared (noted "v") or 1/sigma_squared (precision, noted "p") for both sigma_alpha and sigma_theta.    

--- Fixed the following : If the HSROC function crashes before the requested number of iterations, the last iteration estimates are being saved in the "REstarting_values", "REstarting_values2", ... files, such that the function can be re-run from where it crashes using the "first.run=FALSE" argument.








