* operator for create new directory activated (IKEY)
* operator for rename (works on files and directories so far) (CTRL+LMB)
Note: fail to rename is rather quiet, no message popup, just doesn't rename if it can't.
So far checked that (On Windows Vista) rename fails on system directories, which I think acceptable.
Note: I removed the code that (silently) deletes file if I rename file to an existing one. Considered harmful :)