Create abstract TestBfMatlab class to manage the java class path

- Clean the java class path at the beginning and end of each test
- Clean up TestBfGetPlane to use directly FakeReader
- Derive all unit test cases from TestBfMatlab
Adding OME 5 to docs dropdown menu
Update version history page to 4.4.8
Putting new menu under docs rather than products!
Reader default X and Y sizes from FakeReader to perform tile tests
Merge pull request #542 from hflynn/rebased/dev_4_4/menus

Update menu for OME 5 to docs pages & update version history (rebased onto dev_4_4)
merge dev_4_4 -D org -I include -E exclude: PR 543 (Matlab unit tests cleanup)