Translation updates, addition of Japanese language

-28
update patch / update debian changelog
Router: type arguments, unused imports
Core: type arguments, unused imports
Reverted change in net.i2p.router.Router
Fixed bug hidden by Set<RouterInfo> -> Set -> Set<Hash> unchecked conversion
Findbugs in imported core code
BOB findbugs
findbugs BOB/SAM. more to do.
remove useless string
avoid <? extends Object> generics
fix build
Fixed stupid pasting bug
log tweak; bump -29-rc
Dead code, type arguments
BOB: NamedDB accesses are synchronized, correct findbugs fix is to remove volatile
Router JUnit tests: type arguments, unused imports
Core JUnit tests: type arguments, unused imports
merge of '63ea1d70b3fd3886a050d7b196cd7ae261844164'
     and '6a57f7039fe5697b9770d642ac1d4653e4b9878c'
addressbook: type arguments, unused imports