Cache the own_device, to avoid (innumerable) queries for this object (which, after install, never changes)
Fixes to integrate with newest version of khan-exercises.
Hide related videos on exercises when video isn't available.
Added version 1.9.1 of jQuery to support new khan-exercises.
Updated khan-exercises to newest version.
small regression fixes for benchmark
Correct path to raphael.js on knowledge map.
Updated Khan API data via khanload, after removing exercise blacklist.
[Issue #391] prevent user from entering negative user counts
When normalizing the knowledge map layout, avoid flipping coords twice.
Merge pull request #835 from aronasorman/issue_391

[Issue #391] prevent user from entering negative user counts
Merge pull request #821 from bcipolli/cache_own_device

Cache the own_device, to avoid (innumerable) queries for this object
Updated topic data with double-dimension-flipping removed.
Merge branch 'develop' of github.com:learningequality/ka-lite into new_khan_exercises

Conflicts:
	kalite/main/views.py
Removed all old versions of jQuery, and standardized references to 1.9.1
Fix to loadtesting view to match new get_or_initialize return signature
Merge pull request #837 from jamalex/new_khan_exercises

Integration of up-to-date khan-exercises codebase, plus some related fixes
Merge pull request #834 from gimick/benchmark_tweak_3

small regression fixes for benchmark
allow 100updates to run if username not in FacilityUser
Merge pull request #840 from gimick/benchmark_tweak_4

allow 100updates to run if username not in FacilityUser