VertexArrayObject and ElementGroup should be noncopyable
don't fail if test comparisons return mismatches
use correct path for deploy script
make ElementGroup and VertexArrayObject movable to avoid using unique_ptrs
remove unused includes
Merge pull request #451 from mapbox/noncopyable-vao

VertexArrayObject and ElementGroup should be noncopyable
test with the current release type's settings to avoid double compiles
Merge pull request #452 from mapbox/faster-builds

Avoid double compiles on Linux
fix basepath for headless stylesheets
never allow negative segment indices
only deploy when aws keys are present
deploy dependency builds only with aws keys
add missing header
Merge pull request #453 from mapbox/fix-headless-basepath

Fix basepath for headless tests and correctly load %20 encoded paths
raster-fade -> raster-fade-duration
Render background with plain shader
background-image support