Added contributing subsection and fixed link to web doc
No whitespaces at the end of file
sparsify test: add multi-class test too
Merge remote-tracking branch 'upstream/master' into pred_latency
Merge pull request #2571 from edran/readme

Added contributing subsection to README
Only run make test when coverage is disabled
Merge pull request #2574 from ogrisel/travis-speed

[WIP] Only run make test when coverage is disabled
Merge remote-tracking branch 'upstream/master' into pred_latency