Fixed bug #20310 : PSR2 does not check for space after function name
Fixed bug #20309 : Use "member variable" term in sniff "processMemberVar" method
Fixed bug #20307 : PHP_CodeSniffer_Standards_AbstractVariableSniff analyze traits

Needed to also change a File method that was checking if a member var exists inside a class only.
Fixed bug #20308 : Squiz.ValidVariableNameSniff - wrong variable usage
Slight tweak to wording because it is never going to be 100% accurate
Squiz InlineCommentSniff no longer requires a blank line after post-statement comments (request #20299)
Coding standards fix