change requirement to git repo

.travis.yml

   - coverage run tests.py --rcfile=.coveragerc -v && coverage report -m && python3.4 tests.py
 after_success:
   - coveralls
-

tests_requirements.txt

-synergine>=0.0.1
-synergine_xyz>=0.0.1
+-e git://github.com/buxx/synergine.git
+-e git://github.com/buxx/synergine_xyz.git