Made travis use latest setuptools
Made travis use latest setuptools

This was casing problems since [#build54](https://travis-ci.org/fafhrd91/aiohttp/builds/14501366) which is directly linked with [setuptools-issue-131](https://bitbucket.org/pypa/setuptools/issue/131/test-failures-with-python33).

[Recetly](https://bitbucket.org/pypa/setuptools/src/tip/CHANGES.txt?at=default) setuptools got more bugfixes

vedun/aiohttp,alex-eri/aiohttp-1,decentfox/aiohttp,moden-py/aiohttp,decentfox/aiohttp,vaskalas/aiohttp,morgan-del/aiohttp,panda73111/aiohttp,noodle-learns-programming/aiohttp,andyaguiar/aiohttp,noplay/aiohttp,mind1master/aiohttp,rutsky/aiohttp,jettify/aiohttp,alexsdutton/aiohttp,pfreixes/aiohttp,saghul/aiohttp,alunduil/aiohttp,Insoleet/aiohttp,singulared/aiohttp,vaskalas/aiohttp,avanov/aiohttp,singulared/aiohttp,iksteen/aiohttp,rutsky/aiohttp,KeepSafe/aiohttp,jojurajan/aiohttp,AraHaanOrg/aiohttp,jashandeep-sohi/aiohttp,esaezgil/aiohttp,jettify/aiohttp,elastic-coders/aiohttp,hellysmile/aiohttp,moden-py/aiohttp,sterwill/aiohttp,Eyepea/aiohttp,elastic-coders/aiohttp,mind1master/aiohttp,pfreixes/aiohttp,singulared/aiohttp,decentfox/aiohttp,moden-py/aiohttp,arthurdarcet/aiohttp,juliatem/aiohttp,jashandeep-sohi/aiohttp,danielnelson/aiohttp,z2v/aiohttp,mind1master/aiohttp,jettify/aiohttp,AraHaanOrg/aiohttp,rutsky/aiohttp,panda73111/aiohttp,alexsdutton/aiohttp,flying-sheep/aiohttp,jashandeep-sohi/aiohttp,KeepSafe/aiohttp,elastic-coders/aiohttp,playpauseandstop/aiohttp,panda73111/aiohttp,KeepSafe/aiohttp,z2v/aiohttp,alex-eri/aiohttp-1,noplay/aiohttp,saghul/aiohttp,iksteen/aiohttp,jojurajan/aiohttp,pathcl/aiohttp,Srogozins/aiohttp,esaezgil/aiohttp,juliatem/aiohttp,hellysmile/aiohttp,arthurdarcet/aiohttp,AlexLisovoy/aiohttp,vaskalas/aiohttp,AlexLisovoy/aiohttp,esaezgil/aiohttp,vasylbo/aiohttp,arthurdarcet/aiohttp,alex-eri/aiohttp-1,z2v/aiohttp