[AVS Script Creator] fixed sometimes using VobSub instead of TextSub


git-svn-id: http://svn.code.sf.net/p/megui/code@2470 a21b8521-4df1-4ed3-b48c-cff5bc73dcb3
[Update]             merged some avisynth plugins into one package
[Update]             fixed problem with the installation of the avs package
[Update]             internal optimizations


git-svn-id: http://svn.code.sf.net/p/megui/code@2471 a21b8521-4df1-4ed3-b48c-cff5bc73dcb3
[Update]             required packages are always enabled


git-svn-id: http://svn.code.sf.net/p/megui/code@2472 a21b8521-4df1-4ed3-b48c-cff5bc73dcb3