Implement string based search & replace in multiple files.
This uses the same UI as "Rename Symbol". Moves the actual rename implementation to a static method in BaseFileFind and uses it for rename symbol and search & replace. Moves the signal notification for the code model from VCSManager to the more general FileManager. Note that as for rename symbol, there's no undo yet. Task-number: QTCREATORBUG-73
Showing with 208 additions and 68 deletions