Update readme.md
Update readme.md
Update readme.md
Update readme.md
Merged latest version of build system.
Added support to handle older sdk levels.

Now there is an option to fail or succeed when installed apks are incompatible with current sdk level (i.e. emulator or device has older sdk).
Added support for lint.
Updated lint execution to include full paths in reports.
Updated build system.
Updated testrunner to be compatibel with Android SDK r21.
Rebased dev branch, update host jar.