added dependencies badge
Update README.md
Update README.md
added selenium JsonWireProtocol link
--version
small fix to capabilities for loop
added constructor style support for custom commands based on PR #48
Merge branch 'master' of github.com:turigabor/nightwatch into turigabor-master

* 'master' of github.com:turigabor/nightwatch:
  --version
moved the alias -v to --version instead of --verbose as it is more commonly used in this sense
updated quotes for consistency and fixed some issues with syntax
refactored execute_async and execute to share the common logic and improved the test coverage
0.3.4
Merge branch 'master' into mobify

Conflicts:
	lib/index.js
Merge branch 'mobify' of github.com:mobify/nightwatch into mobify