Updated release guide to include source distribution upload to PyPI.
Updated release guide to include source distribution upload to PyPI.

verizonlabs/mesos,jpeach/mesos,chhsia0/mesos,zmalik/mesos,craimbert/mesos,andschwa/mesos,kaysoky/mesos,neilconway/mesos,reneploetz/mesos,Gilbert88/mesos,andschwa/mesos,gsantovena/mesos,verizonlabs/mesos,dforsyth/mesos,kaysoky/mesos,chhsia0/mesos,Aman-Jain-14/customizedMesos,neilconway/mesos,yuquanshan/customizedMesos,Gilbert88/mesos,dforsyth/mesos,dforsyth/mesos,kaysoky/mesos,asamerh4/mesos,jpeach/mesos,craimbert/mesos,craimbert/mesos,verizonlabs/mesos,abudnik/mesos,zmalik/mesos,yuquanshan/customizedMesos,zmalik/mesos,chhsia0/mesos,neilconway/mesos,craimbert/mesos,Aman-Jain-14/customizedMesos,craimbert/mesos,jpeach/mesos,neilconway/mesos,reneploetz/mesos,verizonlabs/mesos,Aman-Jain-14/customizedMesos,dforsyth/mesos,neilconway/mesos,gsantovena/mesos,reneploetz/mesos,chhsia0/mesos,gsantovena/mesos,reneploetz/mesos,chhsia0/mesos,chhsia0/mesos,craimbert/mesos,yuquanshan/customizedMesos,reneploetz/mesos,gsantovena/mesos,asamerh4/mesos,kaysoky/mesos,Aman-Jain-14/customizedMesos,jpeach/mesos,verizonlabs/mesos,Gilbert88/mesos,andschwa/mesos,abudnik/mesos,abudnik/mesos,asamerh4/mesos,neilconway/mesos,yuquanshan/customizedMesos,zmalik/mesos,abudnik/mesos,zmalik/mesos,yuquanshan/customizedMesos,Aman-Jain-14/customizedMesos,Aman-Jain-14/customizedMesos,verizonlabs/mesos,Gilbert88/mesos,jpeach/mesos,chhsia0/mesos,craimbert/mesos,zmalik/mesos,kaysoky/mesos,abudnik/mesos,Gilbert88/mesos,yuquanshan/customizedMesos,zmalik/mesos,andschwa/mesos,reneploetz/mesos,jpeach/mesos,reneploetz/mesos,asamerh4/mesos,verizonlabs/mesos,Gilbert88/mesos,dforsyth/mesos,gsantovena/mesos,abudnik/mesos,kaysoky/mesos,yuquanshan/customizedMesos,gsantovena/mesos,asamerh4/mesos,dforsyth/mesos,asamerh4/mesos,andschwa/mesos,kaysoky/mesos,Gilbert88/mesos,neilconway/mesos,abudnik/mesos,jpeach/mesos,dforsyth/mesos,andschwa/mesos,andschwa/mesos,Aman-Jain-14/customizedMesos,gsantovena/mesos,asamerh4/mesos