Restructuring in the code to group all code for interpolation and animation together
Speed up animation
Merge branch 'master' of https://github.com/enram/bird-migration-flow-visualization
Remove caching query
Timeframe paused when focus on inputfield
Fixes #42
Merge branch 'master' of https://github.com/enram/bird-migration-flow-visualization
Reducing remaining gray trails

Higher opacity for white layer: less gray trails, shorter trails =>
looks more like birds.
Increase scale to compensate a bit
Add favicon fixes #64
Added class on play button to better visualize play mode vs pause mode
Add date range SQL
Reduce amount of global variables
Change SQL to include below threshold data as 0
Merge branch 'master' into refactor

Conflicts:
	viz/js/birds.js
Spaced indentation
Apply SQL query with negative migration data

Fixes #55
Merge branch 'navigation'
Make simpler play pause button

Now only show pause icon, which is either active (paused) or inactive
(playing)
Undo refactorings in birds.js
Merge branch 'master' of https://github.com/enram/bird-migration-flow-visualization