Adding lib1 as well as aar1.
Changed aar1 package name to better reflect it as sibling of apklibs.
Changed apklib artifact names to make it clear that they are apklibs.
Merge pull request #40 from william-ferguson-au/aar-consumption

Hooking in aar1 instead of lib1.
fixed up aar1 project and test suite to confirm consumption from aar1, apklib1 and apklib2
made naming of modules more consistent
improved naming in library projects
improved naming in apidemos
upgraded robotium so that tests work on Nexus 5