ENH: Initial changes to enable coveralls.io support
DOC: very minor (trailing spaces) to trigger travis build
BF: coveralls -- fix up the order of commands and comparison to current version (travis language is not python here)
BF: install coverage through pip as well (since we are not lang python -- coverage is not there)
yarik wants to see why sudo is needed to run tests (and trigger a new build)
BF: forgotten fix to use PYSUF for comparison
uff -- pip install failed, so removing -q and splitting into separate calls for coverage and coveralls
coverage must be installed with sudo
BF: no sudo for easy_install and pip!
BF: grr -- sudo is needed in this setup although it should not be needed -- adding back for easy_install and pip
BF: remember the original directory with sources -- and cd back there for tests and coveralls

otherwise coveralls doesn't find the repository: https://travis-ci.org/yarikoptic/pystatsmodels/jobs/11293375
Fixing up yaml
Output PWD few times to figure out where/what is happening and run tests under travis-test directory
BF: since we are testing installed version, do not omit /usr but rather include all statsmodels packages into coverage
RF: I think coveralls works now so disabling all those pwd debug printouts
DOC: added current 2013 year into LICENSE.txt copyright statement
Merge pull request #1082 from neurodebian/master

coveralls support
DOC: minor git typo
Merge pull request #1091 from vincentarelbundock/minor_doc

DOC: minor git typo
ENH: add modechoice data.
	Note: The original data is the same as in Vicent's Rdatasets.
	http://vincentarelbundock.github.io/Rdatasets/doc/Ecdat/ModeChoice.html