[Qt-creator] Search and replace behavior with respect to case in editor

[Harri Pasanen]

It would be cool if search and replace would preserve case, in the same 
way as Emacs does.

So

Search:  testpad
Replace: numpad

would produce these replacements:

testpad -> numpad
TESTPAD -> NUMPAD
Testpad  -> Numpad


Bonus points for exceeding Emacs AI in the following cases:

TestPad -> NumPad    (emacs gives Numpad)
testPad  -> numPad    (emacs gives numpad)


Just a pennys worth...


Harri