Updated `if-ie.styl` to `0.5.0`
Update colors.styl
Updated Stylus to `0.43` and tests for it
Merge branch 'pr/67'

* pr/67:
  Update colors.styl

Conflicts:
	lib/variables/colors.styl
Changed default text color to black
Added a way to configure border-alpha of pseudo-buttons, fixes #68
Added a way to center the content of simple inputs, fixes #66
Added examples of big promo-buttons
Fixed the difference in box-shadow for promo-buttons, fixes #65
v0.26.0
Merge branch 'master' into new-hashes-lol

* master:
  v0.26.0
  Fixed the difference in box-shadow for promo-buttons, fixes #65
  Added examples of big promo-buttons
  Added a way to center the content of simple inputs, fixes #66
  Added a way to configure border-alpha of pseudo-buttons, fixes #68
  Changed default text color to black
  Updated Stylus to `0.43` and tests for it
  Update colors.styl
  Updated `if-ie.styl` to `0.5.0`

Conflicts:
	lib/skins/input/skin-islands-input.styl
	package.json
Fixed stuff after caching