Avoid using dict as default keyword argument
Merge pull request #83 from mahendra/cleanup

Avoid using dict as default keyword argument.

This is just for aesthetics, since those arguments are never modified in the code anyway (and unless I'm wrong, aren't modifiable outside of zerorpc's internal code) but you're right, it's good practice!
Using new style classes in code example.
Travis will now test against different versions of pyzmq.
Merge pull request #87 from thedrow/patch-3

Travis will now test against different versions of pyzmq.
Merge pull request #84 from thedrow/patch-1

Using new style classes in code example.
Bump up gevent requirement to >=1.0.
Cosmetic adjustments to make flake8 happy.
Merge pull request #92 from jpetazzo/gevent-1-0

Bump up gevent requirement to >=1.0.
Add flake8 to tox.
Add flake8 to Travis CI.
Merge pull request #93 from jpetazzo/jpetazzo/flake8

Add flake8.