Eliminate forked FunctionCallSignature in favor of upstream version
Merge branch 'develop' into feature/upstream-function-call-signature-sniff

Conflicts:
	WordPress/Sniffs/Functions/FunctionCallSignatureSniff.php
	WordPress/Tests/Functions/FunctionCallSignatureUnitTest.inc
Add requireIsolatedMultilineCallParenthesis from squizlabs/PHP_CodeSniffer#330
Suppress FunctionCallSingature errors

Facilitated by https://github.com/squizlabs/PHP_CodeSniffer/commit/efd8cd9a9e256dccac0f6d25d7aff93ff768bf32

Props @gsherwood
Merge pull request #272 from WordPress-Coding-Standards/feature/upstream-function-call-signature-sniff

Eliminate forked FunctionCallSignature in favor of upstream version