ArangoDB 2.2.3

[Frank Celler]

A maintenance release for ArangoDB 2.2 is available from the usual channels.

v2.2.3 (2014-09-02)
-------------------

* added `around` for Foxx controller

* added `type` option for HTTP API `GET /_api/document?collection=...`

  This allows controlling the type of results to be returned. By default, paths to
  documents will be returned, e.g.

      [
        `/_api/document/test/mykey1`,
        `/_api/document/test/mykey2`,
        ...
      ]

  To return a list of document ids instead of paths, the `type` URL parameter can be
  set to `id`:

      [
        `test/mykey1`,
        `test/mykey2`,
        ...
      ]

  To return a list of document keys only, the `type` URL parameter can be set to `key`:

      [
        `mykey1`,
        `mykey2`,
        ...
      ]


* properly capitalize HTTP response header field names in case the `x-arango-async`
  HTTP header was used in a request.

* fixed several documentation issues

* speedup for several general-graph functions, AQL functions starting with `GRAPH_`
  and traversals