Remediate a number of bugs.

* https://bugzilla.mozilla.org/show_bug.cgi?id=914525 - updated Contact Us link to use market.
* https://bugzilla.mozilla.org/show_bug.cgi?id=916950 - hid geolocation features for now until a more stable solution is available.
* https://bugzilla.mozilla.org/show_bug.cgi?id=896071 - removed underscores in license name.
* https://bugzilla.mozilla.org/show_bug.cgi?id=920572 - will provide visual feedback when a button is tapped.