Merge: Issue 6821: 	Tell the user that JSD slows down opening Firebug and tab switching (displaying a message on disabled Script panel)
Update disabled Script panel warning message (issue 6821)
Show a warning about slow JSD1 in the Console panel (issue 6821)
Comments, display slow JSD warning only if the Script panel is enabled, CSS tweaks, remove obsolete method (issue 6821)
Properly check if a panel is enabled (issue 6821)
Console warning about slow JSD should use black color (issue 6821)