Ignore also shorhand array notation

Ignore the shorthand array notation as default value for arguments
Fixed a problem where sizeof() would be detected, but \sizeof() would not (Yes, this fix will still ignore \my\ns\sizeof())
Changelog + unit tests + coding standards
Merge branch 'patch-1' of https://github.com/danez/PHP_CodeSniffer
Changelog + unit tests + coding standards
Forgot that short array token are detected by the tokenizer even on unsupported PHP versions