Added syncplan crud functions
syncplan: fix for flake8
Added create, update & delete tests for sync-plans
Merge branch 'master' into syncplan-crud

Conflicts:
	robottelo/ui/locators.py
syncplan: fixed various issues as per comments
syncplan: removed the constants import
Added association of products functionality to sync plans update function
syncplan: fix indent for add-remove-product function in syncplan module
syncplan: added the missing docstring for add-remove-product
Merge pull request #667 from kbidarkar/syncplan-crud

Added Syncplan CRUD functions for the WEB-UI