HOVER: Theme Engine compatibilities and some resources tweaks

Use default notification dimens, avoid setting a custom one.
A bit of cleanup too.

Notifications:
Hardcode dimensions to android defaults. Avoid themes to change them,
Ribbons feature (present on CM based roms mostly) needs that.

Thanks to +John Xionidis to help me trick this out for full CM11 made themes :)

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Change-Id: Iccf12061c045c29db4bc73736dac68e52dda198c
Fix DocumentsUI FC

Change-Id: I2bfd4ea83db53ee83683a4754b49b15cc2abeaca
SettingConfirmationHelper: Create internal UiContext to load themed resources

As for Theme Engine introduction, we have to handle context changes. In this case,
a wrong context is passed from VolumePanel to SettingConfirmationHeHlper to be able
to write to system. We fixed it by sending a system context separately from VolumePanel
to let it write to system. Although, right now Safe Headset dialog isn't themed because it
doesn't receive the theme context.

Fix that by creating a new UiContext inside SettingConfirmationHelper, that we will use
just to load themed resources.

Continue this https://gerrit.paranoidandroid.co/#/c/4452/

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Merge "HOVER: Theme Engine compatibilities and some resources tweaks" into kitkat
Merge "Fix DocumentsUI FC" into kitkat
Merge branch 'aospa_upstream/kitkat'