Merge remote-tracking branch 'upstream/release3' into ctd-r3datadesc
Added dataset description to CTD; separated run() function into download() and process(); added E_USER_WARNING parameters to function input file-based error messages
Merge remote-tracking branch 'upstream/release3' into ctd-r3datadesc
Fixed typo in script URL in dataset description
Merge pull request #273 from alisoncallahan/ctd-r3datadesc

CTD release 3