Version 2.8.3

Added PHP 7.2 to Travis CI test suite
Added support for MariaDB 10.2 and MySQL 5.7 JSON data
Dynamic column support marked as deprecated in favor of JSON format
NOTE: any column name that ends in "_json" will automatically be parsed by JSON parser

Created pudlData interface that both pudlObject and pudlResult use
$pudlResult->tree() now fully implemented
Fixed bug in _clauseRecurse not forwarding parameters to child calls
$autoconnect paremeter is now supported on ALL PUDL instances
notRegexp now accepts variable number of arguments
All references to MD5 removed
HMAC support simplified
Fixed bug where committing a chunk of data wouldn't actually commit
Database connection errors now throw pudlException instead of using a custom error handler
Almost all references to self:: replaced with static:: to enable late static binding

Several small cleanups discovered while using static code analysis