Merge pull request #676 from briandipalma/master

Fixing issue #675. Incorrect triggering of no-else-return rule.
Relaxed enforcement of camelcase rule

The `camelcase` rule now allows reading underscored properties:

    var foo = bar.baz_boom;

Fixes #672
Merge pull request #674 from iancmyers/camelcase-fix

Relaxed enforcement of camelcase rule