Zabbix

..F....... [ZBX-21270] fixed already used color autocomplete in graph widget edit form

* commit '160158da424d85bd82e8e1aa273f404ef5407caa':
  ..F....... [ZBX-21270] fixed color autocompletion for item value widget's thresholds field
  ..F....... [ZBX-21270] fixed code style
  ..F....... [ZBX-21270] fixed code style
  ..F....... [ZBX-21270] fixed first palette color being always taken as the next color instead of the first color used; fixed code style
  ..F....... [ZBX-21270] changed function's getNextColor() expected argument to array of colors instead of an array of inputs; fixed code style
  ..F....... [ZBX-21270] fixed wrong argument passing to getNextColor() in configuration.graph.edit.js.php
  ..F....... [ZBX-21270] removed incrementNextColor() method; removed current_color; changed method's getNextColor() argument from form to used_colors; fixed color_usage array's usage as object; fixed sort for least frequent color; fixed code style
  ..F....... [ZBX-21270] fixed changelog message; fixed inability to add items in Configuration -> Graphs
  ..F....... [ZBX-21270] refactored code; used different algorithm
  ..F....... [ZBX-21270] fixed already used color autocomplete in graph widget edit form