Save last selected file type.

git-svn-id: https://svn.code.sf.net/p/genoviz/code/trunk@14881 80d5a9c2-7d8c-4c9f-9369-4e03bca4d2bd
Allow to export in Gr format for graph.

git-svn-id: https://svn.code.sf.net/p/genoviz/code/trunk@14882 80d5a9c2-7d8c-4c9f-9369-4e03bca4d2bd
Change sequence size of unknown sequence.

git-svn-id: https://svn.code.sf.net/p/genoviz/code/trunk@14883 80d5a9c2-7d8c-4c9f-9369-4e03bca4d2bd
Adding  and using SortIgnoreCase comparator.

git-svn-id: https://svn.code.sf.net/p/genoviz/code/trunk@14884 80d5a9c2-7d8c-4c9f-9369-4e03bca4d2bd
Merge remote-tracking branch 'upstream'