fixed typo
#184 fixed issue where disabling/enabling appcache feature did not work
added license header
fixed typo for a setting key
#184 fixed issue where disabling/enabling appcache feature did not work
#187 fixed appcache on firefox
 #185 added appcache download notification
improved appcache settings window
Merge #185 into dev

Conflicts:
	src/main/java/com/data2semantics/yasgui/client/View.java