[Fixes Bug 33] Partial fix.  Greatly reduces the load time.

The first fix is for bad files that have extreme numbers of backslash characters, due to an old bug in openshapa.  This fix reduces the backslashes.
  (Note that it should be determined if the backslashes can be removed altogether).
  This fix saves multiple minutes off of the load time.
The second fix is to reduce the number of calls to getValue() by storing the returned value in a variable.
  This fix only saves a few seconds off of the load time.