fix expand on cardwithlist
Merge pull request #342 from marunjar/master

fix expand on cardwithlist
Fixed the NPE on ForegroundLinearLayout and improved the hotspot on foreground.
Check also: 61ffadb07ab184a655d62e714851c45892c25cf0
Lib-core: changed the code for shadow
Updated doc and prepared for 2.0.1