Merge pull request #328 from MG-RAST/develop

Security updates and modification of matrix resource in API.
Merge pull request #337 from MG-RAST/develop

Some bug fixes, especially important is the removal of HTML tag stripping when a variable is undef or numeric.
Merge pull request #340 from MG-RAST/develop

Fixed syntax errors on Registration page.
Merge pull request #343 from MG-RAST/develop

Edits to stop subset of job submissions from failing and added drilldown for functional trees
fix qiime export
Merge pull request #351 from paczian/master

representative hit grouping error
add notebook publish
Merge pull request #1 from teharrison/master

missing master code merged back
Merge pull request #352 from teharrison/develop

fix qiime export, add notebook publish