fix MANIFEST.in: CHANGES.{txt,rst}
fix MANIFEST.in: CHANGES.{txt,rst}

KeepSafe/aiohttp,rutsky/aiohttp,hellysmile/aiohttp,arthurdarcet/aiohttp,alex-eri/aiohttp-1,jettify/aiohttp,arthurdarcet/aiohttp,alex-eri/aiohttp-1,KeepSafe/aiohttp,KeepSafe/aiohttp,rutsky/aiohttp,moden-py/aiohttp,juliatem/aiohttp,arthurdarcet/aiohttp,moden-py/aiohttp,rutsky/aiohttp,singulared/aiohttp,singulared/aiohttp,Eyepea/aiohttp,pfreixes/aiohttp,z2v/aiohttp,panda73111/aiohttp,jettify/aiohttp,AraHaanOrg/aiohttp,esaezgil/aiohttp,panda73111/aiohttp,singulared/aiohttp,panda73111/aiohttp,pfreixes/aiohttp,moden-py/aiohttp,z2v/aiohttp,esaezgil/aiohttp,hellysmile/aiohttp,AraHaanOrg/aiohttp,alex-eri/aiohttp-1,z2v/aiohttp,esaezgil/aiohttp,playpauseandstop/aiohttp,jettify/aiohttp,juliatem/aiohttp