[artf165179] commit netcdf module changes in response to Jody's fdbk. details: revise contents of module
README, revise dependencies to use parent's versions where possible, add
class level javadocs, reworked tests previously commented out with //,
revised /modules/unsupported/pom.xml to remove netcdf module activation
from all, added README.rst to each test data dir with where data came
from, removed use of slf4j-log4j12 binding.