Extends should be overwritten, not vice-versa
Adding 'join', fixing inconsistent unicode test, bump to 0.0.28
Share results of joined find, bump to 0.0.29
Added support for non-gevent scraping if no pool is provided
Removing erroneous pdb statement, bumping to 0.0.31
added constraint on requests lib version
making versions explicit for all reqs
Moving on to requests 1.2.0 and grequests 0.2.0.