.gitignore: ignore generated gems

`gem build` builds a pindah gem, which should be ignored.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Tell javac to use JVM 1.6 as source and target. Fixes #40
Merge pull request #41 from abscondment/java7

Target updates, custom ant xml, Java 7
Merge pull request #35 from artagnon/master

.gitignore: ignore generated gems
Whitespace in AndroidManifest.xml
Merge branch 'master' of github.com:mirah/pindah