Add install script
Merge branch 'master' of github.com:yagoferrer/hipchat2.0-theme

# By yago.ferrer (11) and yagoferrer (4)
# Via yago.ferrer (1) and yagoferrer (1)
* 'master' of github.com:yagoferrer/hipchat2.0-theme:
  Update README.md
  Update README.md
  Add images for the readme
  Use same font as Hipchat v2. 'Lucida Grande' instead of Helvetica.
  Update colors and link block background.
  Update 'tagMe'
  Update day date separator
  Update system message colors to mimic HipChat 2.0. Red box.
  Update system message colors to mimic HipChat 2.0. Yellow box
  Update system message colors to mimic HipChat 2.0
  Blue line above 'me' user. Link markings fix.
  Update padding and line separation to match Hipchat 2.0 style
  Updating message borders to match Hipchat 2.0 style
  Update README.md
  Update README.md