Fixes map images for location names with non-ascii characters
Prevents infinite redirects when getting map images
Use hash of location name as the cache file name

This avoids problems with browsers partially unescaping map image
filenames. It also ensures better security because even a cleverly
constructed location will get hashed.
Updates the Running page description for GDCR 2014
Updates favicon to the blue world
Adds the auto-generated location details file to .gitignore
Updates the rake gdcr:create_events task for GDCR 2014
Updates list of cities for GDCR 2014