OpenBazaar/OpenBazaar — pull request #641 by Renelvon (2014-09-21 22:20:12+00:00)
Title: Pylint is back for good

### Changelog:
* Reinstall `pylint` on the build. See #621 for details.
* Allow non-relative imports for now. Disable relevant `pylint` flag: `W0403`.
* Allow the `checkstyle.sh` to proceed with rest of checksuite even if pylint is absent