Merge remote-tracking branch 'origin/terencehill/color_picker_carets'

# By terencehill
# Via terencehill
* origin/terencehill/color_picker_carets:
  Optimize a check
  If there's a caret before the cursor in the input box when clicking on the color picker, escape the caret so we can add a valid color code
  Improve detection of color codes when dragging the mouse in the color picker: color code isn't valid if caret is escaped (e.g. ^^x123)

diff --cc qcsrc/common/util.qc
Simple merge

diff --cc qcsrc/menu/xonotic/colorpicker.c
Simple merge