Elevation profile

Refactored app / directory structure for Blueprints app;

added rasterinfo app to serve [distance, value] array for linestring and epsg provided as GET parameter values; This request should work if you have setup a Pyramid with raster data for Utrecht on your local dev server:

http://127.0.0.1:5000/rasterinfo/profile?geom=LINESTRING(570060.51753709%206816367.7101946,568589.10474281%206815374.028827)&epsg=900913