Don't disrupt the statusline if ctags fails
Return to the correct window after closing Tagbar, closes #132

Since the window numbers can change when opening and closing windows
Tagbar so far has used bufwinnr() to find the right window to jump back
to. However, this fails if the same file is being displayed in more than
one window. Save a window-local variable instead to detect the correct
window to jump back to.
Version 2.5
Recognize racket as scheme, closes #134
Simplify getusertypes() function
Add tests to repository
Merge pull request #1 from majutsushi/master

Updates