Fix Java 6 compatibility

 JComboBox generics were introduced in Java 7
fix catalog requests
wcs as annotated controller
wcs as annotated controller
fileServer, DLwriter as annotated controller;
fix problems in catalog controllers
fileServer, DLwriter as annotated controller;
fix problems in catalog controllers
fileServer, DLwriter as annotated controller;
fix problems in catalog controllers
fix problems in catalog controllers, add more tests
fix problems in wcs controllers.
use TdsPathUtils.extractPath everyehere.
fix problems in TdsPathUtil
cleanup GEMPAK classes
the usual idiocy
fix unit tests
fix unit tests
fix unit tests;
CompareNetcdf2: add test for isUnsigned
Merge pull request #30 from iancw/java6-compatibility

Fix Java 6 compatibility
fix unit tests
fix unit tests;
use CDM.utfCharset where possible
fix unit tests
fix unit tests
FmrcInv: vert coords not always getting sorted