[Linaro-validation] [Activity] Week #15

# Progress #

* LAVA-333 * django-restricted-resource test suite fix * json-schema-validator fix * compare builds functionality fix * cherry picking updates from tip into packaging branch * drop deprecated code from packaging branch * Time * LAVA-333 # (10/10) (i.e. 100% of time spent on this task)

# Plan # * LAVA-856 * Fix unit tests on lava-dispatcher to be able to add more tests for the new vm_group functionality. * LAVA-333 * fix outstanding issues in packaging branch. https://docs.google.com/a/linaro.org/document/d/1fYn6dj44_3jnQs7wfSkp2vxbWXK...