Add support for short-form Q strings.

You should now be able to type out your Q-based strings as ｢...｣,
similar to '...' and "...".
Add missing perl6-debug-p to .gitignore
Fix localtest targets

Calling 'make localtest' will no longer run localtest.data through
perl6-j :) . This change renames localtest* to j-localtest* in
Makefile-JVM.in, and changes Configure.pl to generate the localtest
target.