Adding pychecker output to Travis script

Everyone reads the Travis output, right?
pychecker not available from pypi
- events
Merge pull request #439 from sjsrey/events

- events
ENH: sidebar for Releases and installation doc update
ENH: math fixes and typo corrections
Merge pull request #440 from sjsrey/side

ENH: sidebar for Releases and installation doc update
- initial commits of wmd work from anselin, rey and li 2014
intersection example
update source
fixed kernel wmd for updated wmd structure
ENH Marking private functions and changing file opening  to use with
Merge pull request #442 from sjsrey/wmd

Wmd
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
ENH: unique qualitative color ramp. Also refactoring for future ipython
deprecation of --pylab=inline
ENH: deprecation of --pylab=inline
Merge pull request #445 from sjsrey/vizcolor

ENH: unique qualitative color ramp. Also refactoring for future ipython deprecation of --pylab=inline