Run the full test suite
Add latest Python 2.6

And use latest 2.7
Use latest Python 2.7
Merge remote-tracking branch 'hugovk/patch-2'

* hugovk/patch-2:
  Use latest Python 2.7

Conflicts:
	.travis.yml
Merge remote-tracking branch 'wiredfool/more_tests'

* wiredfool/more_tests:
  Run the full test suite
BF: install nose for more comprehensive tests