stable 1.3.1 covering tests

1.3.1 -- Hot-fixes

• changed module name from AspectJ-gradle to android-gradle-aspectj;
• fixed couple of problems with test flavours processing;
• added experimental option: weaveTests;
• added finally post-compile processing for tests;

1.3.0 -- Merging binary processing and tests

• enables binary processing for test flavours;
• properly aspectpath and after-compile source processing for test flavours;
• corresponding sources processing between application modules;