Allow the full path to the executable to be specified in addition to the root installation directory. Also use system2() instead of shell() when calling MLwiN to improve cross-platform compatibility. Provide option to redirect MLwiN message output.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@89 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Add version checking to allow identification and blocking of older versions of MLwiN.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@90 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Remove block preventing R2MLwiN from running on operating systems other than Windows.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@91 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Allow MLwiN path to be set via options(MLwiN_Path="...").

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@92 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Fix for error:
Error in tt[1, 1, ] = var :
   number of items to replace is not a multiple of replacement length

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@93 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Reshape factor chains to a column per parameter prior to returning. NOTE: This may require existing code to be updated.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@94 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Reshape residual chains to a column per parameter prior to returning. NOTE: This may require existing code to be updated.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@95 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Use dev.new() instead of windows() to allow graphs to work on non-windows systems.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@96 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Use formula objects instead of strings in demonstration code.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@97 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Switch to using OpenBUGS as the default in examples, to improve cross-platform compatibility.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@98 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Don't respecify options in examples that are already set as default.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@99 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Allow output from MLwiN while the model is fitting.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@100 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Detach bitness if it isn't specified.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@101 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Update NEWS to reflect recent changes.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@102 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Add TODO list containing potential further extensions/improvements.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@103 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Add more potential future features.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@104 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Modify examples in the R documentation to reflect the recent change of using a global MLwiN path

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@105 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Update to indicate commands only work with (R)IGLS.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r2mlwin@106 edb9625f-4e0d-4859-8d74-9fd3b1da38cb