Previously we were building under python2.6 and 2.7 even

though Twitter has since moved on to drop support for python2.6.
This change instead fixes the build to python2.7 and leverages

that pinning to pivot the matrix axis to jvms and exercise 1.6 & 1.7.
This change also removes the custom notification and falls back to the

default of emailing the submitter and comitter.  The idea here is

to give responsible contributors the feedback they need to roll back

or fix breaks instead of bottlenecking on 2 potentially unrelated

people.
.travis.yml              | 11 +----------

 build-support/virtualenv |  2 --

 2 files changed, 1 insertion(+), 12 deletions(-)

CI went green here: https://travis-ci.org/twitter/commons/builds/43776692