v1.0.0-docs4

• Clarify Mapzen API keys
• Upgrade collect.py example script to use API keys and production URLs
• Better explain WGS84 and other editorial changes

v1.0.0-docs3

• Reword some docs

v1.0.0-docs2

• [docs] Update API key references

v1.0.0-docs1

• Documentation fixes

v1.0.0

Initial release.