Merge branch 'release/1.5.0'
Merge branch 'release/1.6.0'
Merge branch 'release/1.7.0'
Added extension associationgroups to the GIT repo
Fixed link to sync users
Removed the add-to-newsletter functionality

We can send newsletters to member groups, we don't need that list
Harvest module must update groups before associategroups is run
Merge branch 'hotfix/1.7.1' into develop