In addition to checking for []/[]= and set/get, also check
for functions like read/write.

fix regexp match in yahoo lookup to use xml boundary instead of newlines. fixes broken lookup unit test

Ideally, datenimperator-add-ovi would have been rebased to master before
being merged.

Use \A and \z in regular expressions to avoid newline issues. Also, do not consider any address that begins with 127 to be a loopback IP.

Should close #374.

Should resolve half of #374.

MapQuest doesn't require a key for the "open" API, but the
geocoder throws an error if you don't provide one anyway.
This edit makes the API key optional.

Now it is necessary to specify which service is being used:
  Geocoder.configure(:maxmind => {:service => ...})
where '...' is one of: < :country | :city | :city_isp_org | :omni >

If you do this:

  Geocoder::Query.new("Kremlin, Moscow", :params => {:language => "ru"})

you should get a response in Russian ("ru") regardless of the value set
in Geocoder.configure(...).

Either do it consistently across Ruby versions, or don't do it at all.
Plus, it didn't seem to work.