add options to cronserver for memory profiling and garbage collection, to address github issue 111 (unbounded memory usage)
main changes didn't take :( in git
Merge branch 'release-0.10' of github.com:learningequality/ka-lite into trying_cronserver_garbage_collection
Merge remote-tracking branch 'origin/trying_cronserver_garbage_collection' into clickable-scripts
migrating to a more generic setup of scripts
migrating cron scripts to use manage.py
Merge branch 'release-0.10' of github.com:learningequality/ka-lite into clickable-scripts
Merge branch 'release-0.10' of github.com:learningequality/ka-lite into generic-cronserver
fixing windows scripts
Merge branch 'release-0.10' of github.com:learningequality/ka-lite into generic-cronserver
Merge branch 'generic-cronserver' of github.com:bcipolli/ka-lite into generic-cronserver
fixing cronserver, missed changes to uninstall, remove REM'd @echo off 's
set flag so force garbage collection OFF
failed to include scripts in KALite zipping, removed function needed elsewhere from jobs.py, fixed bug in get_ready_count
Merge pull request #699 from bcipolli/generic-cronserver

Generalizing the cronserver to all DB back-ends, fixing scripting issues