Better error message on invalid LngLat

[mourner]

When trying to set center to [37.8, -96], the error is failed to invert the matrix. We should have a saner error because lots of people will trip up on the latlon switch over.

[ezheidtmann]

For future users who hit this error when upgrading from mapbox-gl-js v0.9.x to v0.10.0, the problem is that you have point locations written as literal pairs of [lat, lng]. You need to change these to [lng, lat].

I had these in my new mapboxgl.Map({ center: [ ... ] }), which prevented my entire map from loading but also threw this error hundreds of times as I panned around.