Added title to filter-bar. Renamed filter-block to Search-block. Added new elements to translations.

git-svn-id: https://redmine-desktop-client.googlecode.com/svn/trunk@313 86561f23-730a-238f-b720-e77452a7406c
IssueForm: Handle relations better when inverting the relation.

git-svn-id: https://redmine-desktop-client.googlecode.com/svn/trunk@315 86561f23-730a-238f-b720-e77452a7406c
Don't crash when typing in the filter box when issues are not retrieved yet
Filter: Wait a little while to act upon a change in the filter box