Changed the implementation of ``karl.content.views.files.download_zipped`` to
use a temporary file instead of RAM to construct the zip file.  (LP #1349275)
Pass a limit to catalog search so sorting algorithms can use NBEST.
Don't use path index if we're not actually in a community.
For profiles, get images created by that profile.
Update change log.
Merge remote-tracking branch 'origin/imagedrawer-search-performance-lp1351871'

Conflicts:
	CHANGES.txt
Making 3.129