Reformatted for to make braces align
Updated Tests for Command Cell and UrlCommandCell.  Removed some unused code.
Added GroovyMethod tests, LetLong tests.
Updated Read and Write of SimpleJsonFormat, usage of SimpleJson in all Ncube Loaders (except list).  Updated tests
test files
Merged master changes
Merge pull request #15 from kpartlow/master

Updated tests to get closer to 100% test coverage.  NCube now uses SimpleJsonFormat for all writes.