First cut at CF_bbox_grid function and documentation.
Worked in the time intersection function.
Finished moving functions that do not depend on ncdf4 over to the package.
Added files missing from last commit.
Adding a posix time index and got daily_indices working as a start.
Two new functions pretty much complete with docs. Package installs fine. Dependencies should be in description.
fixing merge conflict
Merge pull request #1 from dblodgett-usgs/master

Helper Functions