NEW: Global Admin functionality

Fixed issue with PL event staff import

NEW: Extra Hours module

NEW: My PL -> PL Summary and Standards, displaying summary of APST standards for combined personal and school based events

Enhanced PL Reporting to include costings and hours in the summary report

Enhanced Manage PL module to include overview summary of APST standards for listed events

Enhanced PL Individual Staff History PL reporting tab to include overview summary of APST standards

Updated documentation

Added ability for system admins to toggle all modules

Fixed duplicate purchase order emails

Fixed timezone related issues for ACE and PL calender files