Update BaseEngine.php

Issue #92 - bug with '0' value because of PHP empty($var) function behavior.
Added Missing ; from ReadMe Example
add the setOrder function on Datatable::table to predefine sort order
Update QueryEngine.php
Update BaseEngine.php

Implemented the "->setExactMatchColumns()" method, which allows you to pass in an array of column names that will be searched via an "exact match" rather than via a LIKE (partial) mechanism.
Update CollectionEngine.php
Altered stripOrder function to use callback function to sort dates or other custom values
Update BaseEngine.php
Use script_view from config instead of hardcode
QueryEngine option: no GroupBy on Count()
integrated html5 data-attributes through rowData
Update README.md
Merge branch 'master' into develop