grab geometry tested fine

modified:   lib/grab_geom.js
modified:   package.json
new file:   test/test_grab_geom.js
getting there with couch_file test

have to also use grab geometry and compute aadt functions.
sort of complicated test.

Not working yet

added more requirements to package.json too

modified:   lib/couch_file.js
modified:   package.json
new file:   test/test_couch_files.js
modified:   test/test_grab_geom.js