The test suite was failing under 2.6 because of 3 usages of test methods that were added only in 2.7.
Also, Travis hasn't been testing on anything older than 3.3 all this time.
I punted on trying to get 3.7 tested because Travis defaults to a Linux version that can't build it
cleanly (old OpenSSL version), and IMO the hacks to get around that are worse than just waiting
for Travis to fix support for it.
The test suite was failing under 2.6 because of 3 usages of test methods that were added only in 2.7.
Also, Travis hasn't been testing on anything older than 3.3 all this time.
I punted on trying to get 3.7 tested because Travis defaults to a Linux version that can't build it cleanly (old OpenSSL version), and IMO the hacks to get around that are worse than just waiting for Travis to fix support for it.