Add kijischema DEVEL userguide.
Add KijiSchema development API docs link.
Add KijiMR DEVEL userguide.
Add development phonebook tutorial.
Add music recommendation development version.
Add documentation release script.

To release new versions of documentation from the DEVEL editions,
you should edit the environment variables in the top of scripts/release_docs.sh
and run it from the root of the project.
whitespace.
DOCS-63. Include working release script for documentation.
Add KijiExpress music tutorial development section.
Added apidocs page link to KijiExpress ScalaDocs.

Reviewed by: renuka
Added accordian boxes.

Reviewed by: renuka
Update tutorial code and explanations to reflect changes.

Reviewed by: juliet
CHOP-70. Update the documents to reflect the removal of the EXPRESS_CLASSPATH.

Fixed a few typos and changed the scripts to use the --libjars command line arguments.
Explain sortNextSongs in topnextsongs of Express Music tutorial.

Reviewed by: juliet
Fixed error in name of kiji-express artifact.

Reviewed by: renuka
Changed overview to discuss the Scalding tuple model.

Reviewed by: renuka
Recommendation generator.

Reviewed by: kiyan
Fixup KijiExpress API docs links.

Reviewed by: juliet