Fixes XML string escaping by removing invalid characters
Added shortcut to get a PHPUnit_Framework_Constraint_Count instance
Open up master branch for new development.
Remove workarounds for PHP < 5.4.
Leftover.
Merge branch '3.7'
Merge branch '3.7'
Merge branch '3.7'
Merge branch '3.7'
Merge branch '3.7'

Conflicts:
	ChangeLog.md
Mimic Composer's formula for locating autoload.php
Merge branch '3.7'
Merge branch '3.7'
Merge branch '3.7'
Merge branch '3.7'
Merge branch '3.7'
Merge branch '3.7'
Merge branch '3.7'
Leftover: Remove workarounds for PHP < 5.4.
Replacement is no longer needed.