Adding pychecker output to Travis script

Everyone reads the Travis output, right?
pychecker not available from pypi
Merge remote-tracking branch 'upstream/master'
scipy dependency handling

With graceful exception handling, we can continue to support users and
installed code base with scipy < 0.11
pychecker

Disabling pychecker until further discussion since it breaks the Travis
build.
Merge pull request #444 from pastephens/scipy_dependency

Scipy dependency