DS-427 Adds member_count get/set functions, variable
Move campaign resource definition to resources inc file
Move users resource definition into dosomething_api
Merge pull request #3138 from aaronschachter/member_count

Member count
DS-428 Enable set_variable resource in DS API
Merge pull request #3139 from aaronschachter/DS-428

Enable System set_variable resource in DS API
Fixes #3140
Merge pull request #3141 from aaronschachter/clear_cache

Clear cache perms to Communication Team