Adding possibility to use --exclude-group.
Lock PHPUnit version to something that works for us
Merge remote-tracking branch 'upstream/master'
Revert "Lock PHPUnit version to something that works for us"

This reverts commit 251523e9356700bc377fd12693aa813971dd1cbe.
Merge branch 'master' of https://github.com/brianium/paratest
Adding missing t in exclude-group description.
Merge pull request #73 from Textalk/master

Adding possibility to use --exclude-group.