* release_2.4.5:
Remove distribute from the setup virtualenv if installed (#1631)
Update changelogs for 2.4.5 release
Only export changed targets in reprepro
Improve the efficiency of the stdout dump database migration
Added logic to not show the loop summary events in the UI by looking at event_data.event_loop.
Handle runner items from ansible v2
bump boto
fix case of Ansible v2 _result.cmd is list for release 2.4.5
Handle both string and list hosts in our hosts->name conversion
Default play names to the hosts the play was run against
Use better isinstance(x) type checking
Backporting test fixes from PR #1020: Fix error with ad hoc command events when running in check mode.
Fix for tasks breaking when using 'yum' with ansible 1.9.4
Bump 2.4.5 version, changelogs, and reprepo