Installation wizard changes
ClipitActivity status is now dynamically calculated by the start and end dates of the activity
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'origin/master'
UBItem::get_properties: added throw InvalidParameterException in case of incorrect property
ClipitActivity: "status" is now relative to "start" and "end", and not a separate parameter. New get_status method defined.
ClipitUser::add_from_excel: new method added to create and select users from an Excel spreadsheet.
REST API: updated
library/performance_palette: performance palette files (php and json) moved to folder inside library folder.
start.php: load_performance_palette moved to separate file: library/performance_palette/load_performance_palette.php