Implemented writing of new page headers
EGit AGAIN forgot to commit a file ?!?!?
Implemented page versioning, page type IDs and page tx IDs.
Fixed in-memory DB to work with refactored storage infrastructure
Changed Zaeschke to ASCII only, updated copyright year.
New ZooJdoHelper and short-cuts in ZooHelper
Missing ZooJdoHelper and assertion that unimplemented queries give
proper exceptions.
Changed query reports to UnsupportedOperationExceptions
Updated query feature description in README
Fixed two stale imports
Added arrayDim to stored schemata
New test for importing old XML files
Fixed XML import/export (tests were failing)
Plenty of refactoring for generic import/export.
- Serializers readClass() returns ZooClassDef
- GOProxy are currently allows in De/Serializer to allow arrays.
- ZooSchema.createObject() removed
- Session.isOidInUse() created
- Node removed from Serializers.
Import/Export and ZooCompareDB work now
Fixed Issue #17
Fixed dropInstances sometimes corrupting the database (Issue #11). This
was due to index.clear() not marking the root page as dirty.
Minor clean-up in test harness
Merge remote-tracking branch 'origin/pageVersioning'

Conflicts:
	doc/TODO.txt