Trebuchet: Labels on dock items

Patchset 4: Discard item scale and use paddings to adjust the workspace
Patchset 5: mHideDockIconLabels = false on vertical hotseat
Patchset 6: Fixed FolderIcon typo
            Fixed inline style
            Remove Workspace injection on Launcher class
            Use isLargeScreen to show text in vertical hotseat

Change-Id: I00c57a28b4c7110b66ec6f856df8865006a76699
JIRA: CYAN-523
Issue: https://jira.cyanogenmod.org/browse/CYAN-523
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>