Story 1264: Promote Geo(not a)Hack to beta

* Restore styles.beta (already seems to be added in skin)
* Make sure MobileTemplateAlpha extends MobileTemplateBeta
* Introduce secondary page actions at bottom of page

Change-Id: Ib1803f4da40df30b46cfc7b28f1442d8bd038cdc
Merge "Story 1264: Promote Geo(not a)Hack to beta"