CStoreHandler.java: Changed the way images are handled.  Images are now stored to a temp file first and then only the header is read back into memory.  This change is required because calling PDVInputStream.readDataset loads the entire object into memory.
Merged changes from 3.1.1.

CStoreHandler.java: Changed the way images are handled.  Images are now stored to a temp file first and then only the header is read back into memory. his change is required because calling PDVInputStream.readDataset loads the entire object into memory.