Merge branch 'release/0.2.1' into develop
Removed left/right hand scrollbar on vertical split.

Right one didn't really appear by default anyway, but now neither will
ever show up. Hooray!
> and < are limited to multiples of shiftwidth

Uses shiftround setting.
Added sidescrolloff (o to 5), changed scrolloff to 2.

Allows for more convenient use of vim inside a terminal, since the
previous 7 lines made very few movements possible without changing the
field of view.
Added checks for undodir, backupdir, and dir.

Now if we are not on a system with them (pre 7.3), we can still use this
vim configuration (untested statement, but I have only noticed these two
to be the problem with pre 7.3).
Updated RELEASE with information for 0.2.2.

Just a handful of small fixes.
Releasing 0.2.2: Small feature changes. No more LH scrollbar.

See the RELEASE notes for more details.