changing the default route

The default route should not contain the version. It should be

http://beacon.arraymap.org/query?

instead of

http://beacon.arraymap.org/v0.4/query?

The version of the beacon could be an optional query parameter (not sure if this is in the specs).

The reasons are

stability - e.g. you may want to run stored queries, independent of the progressing Beacon version
cosmetics :-)
local path interpolation (this is an issue with the arrayMap server & could be solved otherwise, alas)