POINT glyph improvements.
URL salting also done on desktop Safari.
Merge branch '0.8.x'
...
Threshold-leap improvements.
Started moving source adapters out to their own place.
Fixed stripy backgrounds for seq tracks
factored out stylesheet fetchers/default.
BAM backend works properly with new source creation.
Fixed DAS sequence tiers.
Removed special case for stylesheets of sequence tiers.
Regularized source creation.
Fixed handling of single-ordinal locations.
Improved sequence tier behaviour, now closer to how 0.7.x worked.
Gridded backgrounds for all quantitative tiers.
QFNF speedup.
Striped backgrounds in SVG, plus misc SVG-parity improvements.
Much faster QFNF when next match is on a different chromosome.
Minimal support for Ensembl REST API.
Pluggable feature-info.