AI-660 Added proper connection pool to handle timeouts
Merge branch 'beta3' of github.com:bedatadriven/activityinfo into beta3
added logging to GcsBlobFieldStorage for diagnostics
Improve ImageUploadFieldWidget
Merge branch 'beta3' into version4

Conflicts:
	server/src/main/java/org/activityinfo/server/StartupListener.java
	server/src/main/java/org/activityinfo/service/blob/GcsBlobFieldStorageService.java