Add Arch dependency instructions to README.md

Also accidentally clear trailing whitespace in README. vim autocommands ftw.
Clean up README.md
Remove trailing whitespace in README.md
Add Arch instructions (merged from GH-35).

Thanks @thiderman!
Change Ubuntu 12.04 to Ubuntu/Debian in README.md

That should work in most versions of Ubuntu and Debian.
include a copy of the Vim License
Merge pull request #35 from thiderman/master

Add Arch dependency instructions to README.md.
Add modeline with tw per @ashleyh's suggestion
Cleanup refactoring in main
README.md: link to the Contributing wiki page
Remove trailing spaces from gitignore
Added automake as a dependency when building on OS X. Otherwise build complaints of missing aclocal.
Merge pull request #47 from Coornail/ignore-test-vimrcs

Remove trailing spaces from gitignore
Add travis-ci configuration
Merge pull request #22 from cmrosenberg/osx-automake

Added automake as build dependency on OS X
First pass on getting build working on FreeBSD.
Clean up main.c:parse_command_name
Fixed travis image
Merge pull request #57 from mrshu/patch-1

Fixed travis image
README.md: fix ubuntu/debian deps