Changed the code so it would always use the classes local entitymanager
otherwise some methods don't work from a background thread.
merged.
merged.
merge.
Merge branch 'master' of https://github.com/rlsutton1/VaadinUtils.git

Conflicts:
	src/main/java/au/com/vaadinutils/crud/FormHelper.java
	src/main/java/au/com/vaadinutils/crud/MultiColumnFormLayout.java