Fixing two issues with detecting changes in dev mode.  1) Preventing change detection from recursing infinitely if detectChanges is called while application is shutting down, e.g. if you have an @OnApplicationStop job.  2) Preventing an infinite loop if you have a configuration file modified in the future, e.g. if you had to mess with your system clock for testing
Merge branch '1.2.x' of github.com:jonathanmgrimm/play1 into 1.2.x