* Do not collect code coverage information and print it to command-line on Travis CI
* Only test without PHP_Invoker on Travis CI
* Run small tests before large(r) tests on Travis CI
Merge branch '4.0' into 4.1
Merge branch '4.1'
Fix version
Merge branch '4.1'
Fix version
Remove Travis CI notification hook for IRC
Merge branch '4.0' into 4.1
Merge branch '4.1'