Modify Changelog to fragment

Patchset 1) Initial commit
(gweedo767)
Patchset 2) Clean up XML and imports
(gweedo767)
patchset 3) removed setHasOptionsMenu
(gweedo767)
patchset 4) removed hardcoded string and one unneeded string
(gweedo767)
patchset 5) fix spacing in Manifest
(gweedo767)

Settings: Remove Changelog Summary
Remove the redundant summary to the Changelog in About Phone.

Change-Id: Ia808792e31018ca91757b1956c14724a0e6f5c53

Ported from cm-10.2

Change-Id: Id39c3d44cf364b98bd8450db378d3dcfe7301fbb

Conflicts:
	AndroidManifest.xml
	res/values/cm_strings.xml
	res/xml/device_info_settings.xml