Added plugin to all code area editors to suppressed normal browser Find ...

...function with internal code mirror functions.  This is needed for search to work on long documents and also adds more advanced regex search and replace options including:

Ctrl-F / Cmd-F
Start searching
Ctrl-G / Cmd-G
Find next
Shift-Ctrl-G / Shift-Cmd-G
Find previous
Shift-Ctrl-F / Cmd-Option-F
Replace
Shift-Ctrl-R / Shift-Cmd-Option-F
Replace all

Demo: http://codemirror.net/demo/search.html