shell: group_on => group_dict
Add to_date to shell
ADD pymongo for mongodb access in db/api.py
ADD more functions to shell
experiment.py cleaning up and improving metadata handling
ADD datatypes.TrapData.time() for time of sample points
FIX experiment syntax error
curvefit.fit.plot() uses line style by default
UPDATE image: add warning to loading background with diff exp time
UPDATE db/: kwargs in db.save_exp for adding extra fields
UPDATE fcalc: removing dependencies on image.Stack in calculate()
UPDATE fileIO.savefret(): takes args filename,time,donor,acceptor,fret,metadata,comments
ADD shell.to_date(string) to aid datetime creation from str like '2014.03.03'
FIX fec.Rips; ADD moroz_nelson WLC function; fix fec.rip_errors