Fix #161
Create util method for clone objects
Source formatting
Add iterativeOption property to Issue and Pull Request
Iterate through iterativeValues before execute a command
Add multiple open/close pr/is feature to README
Source formatting
Merge branch 'master' of https://github.com/node-gh/gh
Source formatting #45
Merge branch 'master' of https://github.com/node-gh/gh

Conflicts:
	bin/gh.js
	lib/cmds/issue.js
	lib/cmds/pull-request.js