added category viewer
-rw-r--r-- 2917 bookData.py
-rw-r--r-- 6100 bookForm.py
-rw-r--r-- 5272 browser.py
-rwxr-xr-x 1600 cursestest.py
-rw-r--r-- 6139 dbLayer.py
-rwxr-xr-x 347 echokey.py
-rwxr-xr-x 3360 librarian.py