Merge pull request #1230 from waveney/wav31

Faves merged - not yet working
Merge pull request #1233 from waveney/wav31

Dragonfly and fixes
Fix Molpy.ConfigureFave

`Molpy.ConfigureFave` doesn't work on IE 11, since `item` is a function containing native code and cannot be overwritten. Adding a `var` in front of `item` fixes this problem.
Fix Chromatic Heresy and Anisoptera
Merge pull request #1235 from cloudytheconqueror/patch-1

Fix Molpy.ConfigureFave and Chromatic Heresy
Dragonfly part 3 and fixes
Resolve conflict