Added completion for Homesick
(https://github.com/technicalpickles/homesick). Originally from
https://github.com/liborw/homesick-completion.
fix bug where "no active gemsets" displayed to STDERR
Adding screenshots and updating readme to link to themes
Replace wiki link wtih repo link to avoid maintenance
Adding black and white screenshots, bigger font
Compressing files
Converting all files to png
Adding new better compressed terminal screenshots
Merge pull request #259 from marshally/fix_rbenv_gemset_bug

fix bug where "no active gemsets" displayed to STDERR
Merge pull request #258 from nwinkler/homesick-completion

Added completion for Homesick
Update chruby prompt to show "(system)" when using system ruby
Merge pull request #263 from aramprice/master

Update chruby prompt to show "(system)" when using system ruby
removing backup folder
Merge pull request #260 from HaloZero/feature/theme-screenshots

Feature/theme screenshots
Remove all the theme screenshots, they're now in the wiki
Update screenshots url in README.md
[sexy theme] remove extra reset which finds its way into stdout

Stray sgr0 was emitted to stdout, corrupting application output.
Improved prompt speed when hg is not installed.

Prevented bash from walking the path looking for hg when it is not
installed during each prompt refresh.
Merge pull request #272 from yachi/patch-1

Update screenshots url in README.md
Merge pull request #273 from betamatt/patch-1

[sexy theme] remove extra reset which finds its way into stdout