table plugins.
Make bearing range configurable by adding a comma-separated second part
to the bearing paramenter, like so:
b=<bearing:0-359>(,<range:0-180>)
If no range is supplied, it defaults to +/- 10 degrees.
- refactor facade::GetEscapeName() into get_name_for_id() call that is implemented in subclasses
- remove dead code
- fix failing tests where names got double-escaped
- fixes https://github.com/Project-OSRM/node-osrm/issues/83
