Setup Loris IIIF Image Server; Address #326

[ruebot]

See: #326

Depends on: #323

Once the above is merged, I'll rebase and update this PR.

How to test:

• Build completes successfully
• $ curl -i http://localhost:8383/loris

HTTP/1.1 200 OK
Date: Wed, 10 Aug 2016 04:49:28 GMT
Server: Apache/2.4.18 (Ubuntu)
ETag: "1acdb93e43e76c08a2e2c037bad4c554"
Content-Length: 220
Vary: Accept-Encoding
Cache-Control: max-age=5184000
Expires: Sun, 09 Oct 2016 04:49:28 GMT
Content-Type: text/plain

This is Loris, an image server that implements the IIIF Image API Level 2. See
<http://iiif.io/api/image/2.0/> for details and <https://github.com/loris-imageserver/loris>
for the source code and implementation details.

• http://localhost:8383/loris/01/02/0001.jp2/full/full/0/default.jpg - should look like:
  
• http://localhost:8383/loris/01/02/0001.jp2/0,0,500,600/!550,600/0/default.jpg - should look like:
  

@dannylamb @whikloj @DiegoPino - review?

[whikloj]

Builds, Drupal works, CLAW microservices work.
Still having that problem with the Fedora WebUI, but since it seems to be just me I'll disregard it for now.
👍

[whikloj]

Oh yeah and Loris responds correctly.