[build][clean] Do not output too much noise
[imports] Remove tinytest submodule
[imports] Check-in errordeveloper/tinytest@ac0b57c
[ci] Point Travis at checked-in tinytest
[ci] Do not need to build docs on Travis -

installing doxygen and latex take several minutes
[imports] Check-in embecosm/winavr@ad8c42e