added optimizerpi.sh script
Clean up leftover rebranding from Zone to Sharing network.  Simplify the links and text on the registration page.  Delete duplicate template.
Link to current video download page from "update"
two more remaining for rebranding
Make sure all "deferred counter" items have counter None (even at creation), and make sure all records are sent when necessary (never send a record with a high counter without records with lower counters with it)
Merge pull request #773 from bcipolli/counter_fixes

The beauty of counter=None on change...
more rebranding of zone to sharing network
Merge branch 'develop' of github.com:learningequality/ka-lite into template_cleanup
Merge branch 'template_cleanup' of github.com:bcipolli/ka-lite into template_cleanup
Merge pull request #774 from bcipolli/template_cleanup

Develop: Cleanup of (outward-facing) rebranding from "zone" to "sharing network"
Allow packaging of data (like an initial sync) into downloadable json.  A step towards USB-based syncing.  Also fix permission issues on double-clickable install script.
Merge pull request #775 from bcipolli/package_data

HTH: Allow packaging of data (like an initial sync) into downloadable json.
Part 2: add missing device data, fix missing device line, make import more robust.
Merge pull request #777 from bcipolli/package_data

HTH: Allow packaging of data (like an initial sync) into downloadable json (part 2)
Merge branch 'develop' of github.com:learningequality/ka-lite into optimize-rpi-script
moved optimizerpi to scripts
a few updates based on comments to optimizerpi.sh
Merge pull request #761 from mrshu/optimize-rpi-script

Added optimizerpi.sh script
Merge branch 'develop', remote-tracking branch 'leq/develop' into develop