some minor clean up
Merge pull request #112 from davidzchen/ui-tweaks

Minor tweaks and clean up
recover file accidentally removed
add db update file for project_properties
Merge branch 'release-3.0' of github.com:azkaban/azkaban2 into release-3.0
Fixed some compiler warnings, mainly involving unchecked casts
fixing the deadlock in triggermanager
clean up sql update scripts
Stop running prepare properties on the top level flow. This causes bug in resolving flow execution properties.
Merge branch 'release-3.0' of github.com:azkaban/azkaban2

Conflicts:
	src/java/azkaban/scheduler/ScheduleManager.java
Merge branch 'master' into ui-tweaks