[untested] element update info age is now saved in backend
showing element update info age
fixed a wrong attribute name
removed element_rextfv_status from webfrontend ajax api.
changed type of last_sync attribute; changed name of this attribute in info()
Merge branch 'master' of ssh://github.com/GLab/ToMaTo into element_info_age

Conflicts:
	backend/tomato/elements/generic.py
fixed status window
Merge pull request #567 from t-gerhard/element_info_age

Element info age