You can now restrict violations to individual sniff codes using the --sniffs command line argument
Progress information now shows the percentage complete at the end of each line
Merge branch 'report-memory-improvements' into phpcs-fixer

Conflicts:
	CodeSniffer/File.php
Added missing argument for error case
All add methods now return a boolean value to indicate if the error was shown or ignored. All fixers now check that value to ensure they should be fixing the error. If the error is not shown for some reason (probably filtering) then the fix should not be included.
Added missing argument for error case
Merge branch 'report-memory-improvements' into phpcs-fixer