transition bigger airport poi
slight adjustments to landcover colors for contrast discrepencies
support for style transitions
be sure to track previous composites
Merge pull request #235 from mapbox/transitions

support for style transitions
style cascading needs to happen every render for transitions
clearer comments
include noveg in wetland bucket
Merge branch 'master' of https://github.com/mapbox/llmr-native
playing around with road and poi label strokes, to match updated icons
fixes #48: constrain min zoom/vertical pan to within world
Merge branch 'master' of github.com:mapbox/llmr-native
disallow/undo rotation at low zooms
reset angle on resize to small zooms
use boost optional to mark initialized values
add keys to stylesheet
first draft at blurring
remove unneeded headers
Merge branch 'master' into road-poi-labels
updated night poi label stroke, strokeWidth, and strokeBlur