- removed operator* in favour of operator() for consistency with tmp
class. The previous use of operator() for const casting didn't work
anyhow due to template confusion.
- added xferCopy(), xferMove() and xferTmp() template functions instead
- preliminary changes to IOobjects and Fields for xfer
* added '#remove' function
* changed insert() method name to more general execute()
* using #inputMode or #remove within a primitiveEntry now provokes an error
* adjusted the dictionaryTest accordingly