call of validation methods for text field
Merge branch 'cleanup' of github.com:Arbonaut/collect-android into cleanup
test for validation
fixes for bugs reported by foresters in June
use of loadValidItems to get code field items
refactoring CodeField class
Better connection close handling
Merge branch 'cleanup' of github.com:Arbonaut/collect-android into
cleanup

Conflicts:
	android-app/src/main/java/org/openforis/collect/android/service/ServiceFactory.java