Using CalypsoTheme for some Activities that didn't have it set.

Without the CalypsoTheme applied overflow menus were inconsistent between Activities.
Merge branch 'develop' into issue/inconsistent-overflow-styles
Forgot to update the Theme activity.
Merge pull request #1965 from wordpress-mobile/issue/inconsistent-overflow-styles

Using CalypsoTheme for some Activities that didn't have it set.
Merge branch 'develop' of https://github.com/wordpress-mobile/WordPress-Android into feature/calypso-stats