Fix indentation mistake from style refactor.
Update some defaults in the AndroidTarget

We will have to see if the configuration is actually not useful. It
may be that the sensible defaults are useful in 90% of cases, yet too
restrictive in the other 10%.
Aapt genlang function furnished with action

Completing the mutation of the target graph next.
Update args in genlang

Having two flags in one quoted index was not working. It was sending just
the dash as an arg, resulting in "ERROR: Unknown flag '- ' "

Also, missing arg in the log message.
Update HelloWorld BUILD file with current android_target fields.

Still a work in progress.