Resolved all appropriate "Field can be local" analyser conclusions.
Removed redundant semicolons.
Simplified pointless Boolean expressions.
Removed redundant return statements.
Resolved all redundant local variables.
Made such things final as can be; while doing so spotted an incrementing bug in WebsiteInfoFormFragment.java and corrected it.
Fixed wrong-way-around test for null on push subscription, made a couple more things local that could be, removed some unused local variables and an unused initial value.