Added cmd screenshot
package casperjs - phantomjs - slimerjs
script screenshot.js
Config file
package need to be install -g
path png screenshot
correct path
ignore folder screenshots
remove time-grunt
better
English comments and removed tab
Merge pull request #263 from magsout/screenshot

Screenshot
Merge branch 'dev.webcompat.com'

* dev.webcompat.com:
  English comments and removed tab
  better
  remove time-grunt
  ignore folder screenshots
  correct path
  path png screenshot
  package need to be install -g
  Config file
  script screenshot.js
  package casperjs - phantomjs - slimerjs
  Added cmd screenshot

Conflicts:
	.gitignore