Merge pull request #1462 from diegosarmentero/master

running working tests only
Merge pull request #1463 from diegosarmentero/master

add python 3 check in resources and fixed tests
Update .travis.yml

Fix for covio, according to official Docs at:
https://coviolationsio.readthedocs.org/en/latest/examples.html#django-project-with-travis-ci
Merge pull request #1464 from juancarlospaco/patch-3

Update .travis.yml
Delete .covio.yml
Update .travis.yml
Update README.md
Update .travis.yml

Since we dont use Covio anymore, the covio agent and its dependencies are not needed anymore, 
so we remove them to speed up the process.
Merge pull request #1466 from juancarlospaco/patch-4

Update .travis.yml
Finally made project tree widget auto grow
Performed some cleaning on the code
Merge pull request #1471 from perrito666/master

Finally made project tree widget auto grow
Enable Plugin Sorting,Path Autocomplete

Enable Plugin Sorting, Path Autocomplete on Manual Install, Alternating Row Colors
Merge pull request #1475 from juancarlospaco/master

Enable Plugin Sorting,Path Autocomplete
Ninja Editor Checkers with updates in explorer tabs lists complete