Support code refactoring (V7)

[Loaden]

Already implement:
1. Find usages of symbol (Search > Find usages [Alt-.] OR popup menu)
2. Rename symbol under cursor (Edit > Rename symbols [Alt-N] OR popup menu)
Any comments ?


P.S.
1. Need add coderefactoring.h/cpp to project.
2. Need add search dirs: include\mozilla_chardet
3. This patch JUST for *testing*!

V4:
Fixed some issue.

V7:
Bug fixed.

[ollydbg]

I'm testing it now. It is a huge patch and a big improvement.

[Loaden]

V7, Now working well!