Enable Home longpress configuration

Summary: enabled Home configuration preference to go with appropriate framework

Test Plan: test and merge, but it's solid

Reviewers: synergy

Reviewed By: synergy

Differential Revision: http://review.codefirex.com/D556
Merge branch 'jb-devel-mr2-release' of git://github.com/codefireXperiment/packages_apps_settings into jb-devel-mr2-release