mapbox-gl

• Misc performance improvements

Bugfixes

• Fix sprites on systems with non-integer devicePixelRatios (#1029 #1475 #1476)
• Fix layer minZoom being ignored if not less than source maxZoom
• Fix symbol placement at the start of a line (#1461)
• Fix raster-opacity on non-tile sources (#1270)
• Ignore boxzoom on shift-click (#1655)

UX Improvements

• Enable line breaks on common punctuation (#1115)

API Improvements

• Add toString and toArray methods to LngLat, LngLatBounds (#1571)
• Add Transform#resize method
• Add Map#getLayer method (#1183)
• Add Transform#unmodified property (#1452)
• Propagate WebGL context events (#1612)