put array ranges over all time into database
record enough time info to compare datasets

record step size and step unit to database
saving off both standardized (days since 0000-0-0) and native time
information
keep start date around too for completeness
Reorganized import script to import on file basis
Relocated import script

So that it can be used as a module
Initial work on run time import
Fixed various issues with logic and style
Time fixes
Merge remote-tracking branch 'origin/time-fixes' into runtime_import

* origin/time-fixes:
  keep start date around too for completeness
  record enough time info to compare datasets
  put array ranges over all time into database

Conflicts:
	scripts/mongoimp.py
Fixed bad merge resolution
Fixed bug where opacity was not maintained between animation steps
Check if the file metadata exists before adding it to the database
Fixed multiple import
Merge remote-tracking branch 'origin/runtime_import'

* origin/runtime_import:
  Fixed multiple import
  Check if the file metadata exists before adding it to the database
  Fixed bug where opacity was not maintained between animation steps
  Fixed bad merge resolution
  Time fixes
  Fixed various issues with logic and style
  Initial work on run time import
  Relocated import script
  Reorganized import script to import on file basis
  keep start date around too for completeness
  record enough time info to compare datasets
  put array ranges over all time into database