Refactored Advanced Search Spending/Contracts Code.  Moved Classes to class folder with namespace.  Moved field definitions and domain-specific field configurations from array to JSON to increase maintainability.  Updated javascript to not clash with data feeds data source filter.
Merge branch 'checkbook_edc' of https://github.com/NYCComptroller/Checkbook into checkbook_edc
Refactored Advanced Search Spending/Contracts Code. Moved Classes to class folder with namespace. Moved field definitions and domain-specific field configurations from array to JSON to increase maintainability. Updated javascript to not clash with data feeds data source filter.