Migration for detector fields
Migration for detector: height added
Changed alfa to alpha
Models in Migration updated
expand length of charfields

Not tested on local database!
Changed max_length postalcode

If south migration 0008 (see commit 8997e23) is executed longer
charfields are possible
Fake datastore: download more recent data
Do not log database queries
Refactored histograms update check
Fake datastore: more data to include config
Refactored histograms updates
num_config was already updated during check
Revert "num_config was already updated during check"

This reverts commit ff3ef4d746518b0c2a942738552e9636b6c739d8.

Ouch.  Num_config was intentionally updated late to make sure that only
*new* configs were recorded in the public database.
BUGFIX: fix processing configs

During the check, the number of events can be safely recorded in the
summary.  Not so for the number of configs.  The previous number is used
to determine which configs are new during the update.
Added the ESD directory
Updated some comments
PEP 8
Added scaffolding for generating event ESD
Improve admin display for Detector HiSPARC
Use ESD for histograms!