Problem: Various inconsistencies in test files.
Solution: Add modelines where they were missing. Use Check commands instead
of silently skipping over tests. Adjust indents and comments.
(Ken Takata, closes#6695)
Problem: The Man plugin doesn't work that well.
Solution: Use "g:ft_man_open_mode" to be able open man pages in vert split
or separate tab. Set nomodifiable for buffer with man content. Add
a test. (Andrey Starodubtsev, closes#873)
