puppetclasses UI: Added code for locators, CRUD functions & make factory function for puppetclasses
Tests UI: Added tests for puppetclasses and fixed media tests
puppet classes UI: Added BZ docstrings
Merge pull request #1122 from kbidarkar/puppet-classes

Added CRUD functions and testcases for Puppet classes.
updated promote button locator
Blocked the test with bz id
Merge pull request #1141 from sghai/fix-test

Updated CV 'promote' button locator