TVB-961
Set environ TK_LIBRARY and TCL_LIBRARY on Windows.

git-svn-id: https://repo.thevirtualbrain.org/svn/tvb/trunk/framework_tvb@5008 1c0e02f0-7929-43c0-8fb3-3293bf43b0d1
TVB-72
Add implementation for export image of PSE-Discrete.

git-svn-id: https://repo.thevirtualbrain.org/svn/tvb/trunk/framework_tvb@5009 1c0e02f0-7929-43c0-8fb3-3293bf43b0d1