Added a unit-tested protected property check
Added two additional checks for services (together with Maarten)
Merge branch 'master' of https://github.com/hostnet/PHP_CodeSniffer

Conflicts:
	src/Standards/Hostnet/Sniffs/Classes/ProtectedPropertiesAreNotAllowedSniff.php
	test/Standards/Hostnet/Classes/ProtectedPropertiesAreNotAllowedUnitTest.0.inc
	test/Standards/Hostnet/Classes/ProtectedPropertiesAreNotAllowedUnitTest.php