Add JSHint Grunt task options

See #473

Signed-off-by: Byron Ruth <b@devel.io>
Add prettier jshint output and add ignored files

Signed-off-by: Byron Ruth <b@devel.io>
Remove overly restrictive quotmark JSHint option

It appears to complain even if mixed quotes are used in the same block.
This is not worth the pain of managing this.

The rule is, use single quotes unless a single quote is contained in
the string.

Signed-off-by: Byron Ruth <b@devel.io>
Fix various JSHint issues

Signed-off-by: Byron Ruth <b@devel.io>
Update Travis config to run JSHint

Signed-off-by: Byron Ruth <b@devel.io>
Merge pull request #493 from cbmi/jshint

Integrate JSHint in Gruntfile and Travis