minor tweaks
all forms are now submitted correctly with AJAX and displays error and success messages. corrected several bugs and errors.
added css for daterangepicker
added identifiers for all error messages and other minor tweaks
added a success div
create team div behaves correctly
minor changes regarding loading of resources
get_statistics returns correct results
added profile page with two simple inputs
added profile page with two simple inputs
improved add_team function
improved add_team function
all methods consistently return json encoded arrays with errors or count of rows affected + more
minor tweaks to validation rules, error calling etc.