Added optional setting to update facet counts based on filtering choices when using Haystack (HAYSTACK_FACET_COUNTS)
Renamed optional setting to turn off security permission pre-filtering (SKIP_PERMS_FILTER)
Simplified/fixed Haystack bbox filtering
Fixed haystack indexing of keyword values
Merge remote-tracking branch 'origin/master' into haystack4
Merge pull request #1571 from mbertrand/haystack4

Additional haystack options/fixes
remove the user api as unneeded and some fixes
some api docs and small security update
update the permissions widget screenshot and some api doc
Fixes issue found in Ubuntu 14.04 with request.body

Debugging information can be found at:
https://gist.github.com/ingenieroariel/74c5d4b3875799d50b3d

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Add a text filter to search/explore pages - indicate what text was searched for if any, and allow user to modify this filter.  Based on main search input form.
Merge pull request #1574 from mbertrand/haystack5

Add a text filter UI to explore/search result pages
Add a GeoGit contrib package.
Merge pull request #1575 from garnertb/geogit-contrib

Add a GeoGit contrib package.
Add a flake8 configuration to setup.cfg.
PEP8 fixes in the api app.
PEP8 fixes in the base app.  Fixes #1577.
PEP8 fixes for the catalogue app.  Fixes #1578.
Bump geonode-user-accounts 1.0.2
Fix unresolved description variable in the base models.
Fixed PEP8 violations
fix pep8 violations in api