Merge pull request #401 from pooya/develop

Makefile: Add erlangtest, dialyzer & pythontest as deps of test.
Do not use install-core as a dependency of pythontest.
Update Makefile and use --user for testing.
Update Makefile to add --user to nose install.
Update Makefile and fix the path before nose.
Keep calling the fair_scheduler until it gives us the next task.