Add and enforce some checkstyle.
Add suppressions and add some checks to be more google-like. Fix test violations.
Remove unnecessary TODO to order imports, rename sun_checks to checkstyle
Merge pull request #32 from b0ri5/java-use-checkstyle

Use checkstyle to enforce java style/lint
Merge branch 'master' into use-strict-harmony
Use my proposed method of passing --use-strict through until it's merged into mocha.