added tutorial on how to run your unit test with phantom js
added tutorial on how to run your unit test with selenium
added tutorial on how to run your unit test with sauce labs
 added tutorial on how to build a custom adaptor
Merge pull request #6 from rbakr/master

Adding Why and how to use @venus-fixture
Merge branch 'master' of git://github.com/roelrz/venusjs.github.com

* 'master' of git://github.com/roelrz/venusjs.github.com:
  added tutorial on how to build a custom adaptor
  added tutorial on how to run your unit test with sauce labs
  added tutorial on how to run your unit test with selenium
  added tutorial on how to run your unit test with phantom js

Conflicts:
	_source/contents/tutorials/_index/content.markdown
Building new tutorials
Adding venus CLI documentation and doing some reorg of content