[DOC,FIX] Showing member variables overview.
[DOC,FIX] Showing @headerfile on group pages.
[FIX,DOC] Marking documentation of AlignmentGraph#convertAlignment as dox documentation.

The missing exclamation mark probably is a typo.
[FIX,DOC] Using item title instead of name in search index.
[DOC,FIX] Hiding link to "None" source for @code.
Merge pull request #15 from holtgrewe/feature/dox_fixes

Feature/dox fixes