- Add fix for deleting dll's not in bin folder during update
- Add the migration helper to the plugin migration class
- Fix some compiler warnings
- Some additional fixes to global.asax for 1.0.9
- And... another fix
Merge remote-tracking branch 'origin/develop' into release-1.0.9

Conflicts:
	Rock/Services/NuGet/WebProjectSystem.cs
- Fix some migrations that break existing installs with real data