Change return values for rollback and patrol

* Changed return values for patrol and rollback
* These were added in the current master, so this is no breaking change
* Used more simple values which are easier to compare
* Fixes #80
9 jobs for return-change in 2 minutes and 34 seconds (queued for 1 second)
Status Job ID Name Coverage
  Lint
passed #5773
lint:lint-php5.4

00:00:50

passed #5774
lint:lint-php5.6

00:00:47

passed #5775
lint:lint-php7.0

00:00:25

passed #5776
lint:lint-php7.1

00:00:47

 
  Codesniffer
passed #5777
allowed to fail
codesniffer

00:00:50

 
  Unit
passed #5778
unit:testBasic

00:00:40

passed #5779
unit:testRead

00:00:53

passed #5780
unit:testReadAssertFail

00:00:50

passed #5781
unit:testUserProperty

00:00:36