Look and Feel Updates

The UI changes for portlet's Look and Feel were committed today: [LPS-38624](http://issues.liferay.com/browse/LPS-38624). The Look and Feel chapter was updated accordingly. The other commit updates instructions dealing with portlet's *Options* menu. I'll begin making the rounds in the User Guide with similar changes to instructions and snapshots dealing with the *Options* menu.

http://issues.liferay.com/browse/LRDOCS-590