Added support for `globals` directive.  `predef` is an undocumented JSLint remnant that does not allow imported globals to be overridden.
`undefined` is cool to pass as third argument to JSHINT()
Fixing key error with unicode linter names.
Adjusting cpplint to check stdin (instead of a temporary file).
Adding version information and documentation for v1.6.12.
Bumping Beta version number.
Bumping beta version number.