Revert "Update links to fetch gaia-theme from default theme."

This reverts commit 2896d5ff8e3b531c3d26b216102ebe55f0cfb5d0.
Bug 1069840 - Update apps links to fetch shared style from default theme r=vingtetun
Revert "[clock] unittest picker_test.js using assert.include for testing object, not Array or string"

This reverts commit a87b3bc0871ce34ea5305b1012d11fb5088cc6b9.

This commit was from bug 1066988. Reverting due to not having a proper bug number listed in the commit message.
Bug 1066988 - [clock] unittest picker_test.js using assert.include for testing object, not Array or string r=mcav
 Bug 1069380 - Use link role instead of button for open action in cards view

Changes the button role on the screenshotView to link, and adds the aria-hidden=true attribute to the iconButton to hide it from AT's. Added tests to ensure the aria properties in the cards view.
Merge pull request #24863 from jobara/1069380

Bug 1069380 - Use link role instead of button for open action in cards view
Bug 1077331 - Only seek ringtone back to start on ringtone if the file is loaded fully enough to seek. r=etienne
Merge pull request #24909 from DouglasSherk/1077331-system-call-vibrate

Bug 1077331 - Only seek ringtone back to start on ringtone if the file is loaded fully enough to seek. r=etienne