Renamed Util to API
Added SOM classes for English & Metric
Use WP HTTP API for requests
Added transient caching
Fixed syntax error in SOMMetric
Fixed another syntax error in SOMMetric
Renamed widget title
Updated API & Rides to be more useful
Moved appropriate methods from Map Widget to Rides
Merge pull request #4 from jrfoell/master

API class, SOM class(es), Rides class, LatestMapWidget