Added Json report type.
Merge branch 'json-support' of https://github.com/jeffslofish/PHP_CodeSniffer
Document Some Squiz Standard Sniffs.
Add a few more sniff documentation files.
Merge branch 'master' of https://github.com/squizlabs/PHP_CodeSniffer
Merge branch 'master' of https://github.com/nubs/PHP_CodeSniffer