Added a link to numenta.org in the README for casual browsers.
Remove reference to grokengine-default.xml config file, not relevant to NuPIC,
reverting 24b16d61594b5125471bd6eb061b089abdaf19c7 in the process.  Fix
super() calls in py/nupic/support/configuration_custom.py
Merge pull request #28 from rhyolight/add-a-link-ta-home

Added a link to numenta.org in the README for casual browsers.
Merge pull request #31 from oxtopus/grokengine_configuration

Remove reference to grokengine-default.xml config file, not relevant to ...
Fixed example OPF command on README.md; referenced unset environment variable $NUPIC_HOME
Merge pull request #35 from dbrody/updated-README-OPF-link

Fixed example OPF command on README.md; referenced unset environment variable $NUPIC_HOME
Added IRC notifications for Travis builds.
Setting travis webhook urls up.
Merge remote-tracking branch 'upstream/master' into dev-master