Castle-cms

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Fixes:

- Upgrade collective.elasticsearch to fix sorting issues and negative
indexing implementation
[vangheem]

Changes:

- Default to reversed sorting and explicitly use effective date sorting
for query listing tile.

------------------

New:

- Add request interval option to crawler
[lucid-0]


Fixes:

- Upgrade collective.elasticsearch to 2.0.4 to fix date
queries that use `min:max`
[vangheem]

- Fix querylisting not filtering by tags anymore
[vangheem]

- fix popup modal close button to be visible on mobile
[vangheem]

- Upgrade plone.app.mosaic to fix protect.js script tag being
loaded over and over again in edit mode
[vangheem]

- Fix alias causing logout at backend urls
[lucid-0]

- Upgrade collective.celery
[vangheem]

- Fix: Use ArchiveManager to getContentToArchive
[lucid-0]

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- Fix upgrade of `castle.slot_tiles` when it's been set to None
[vangheem]

------------------

New:

- Implement new modal link
[vangheem]

- Add import subscribers form for announcements panel
[CorySanin]

- Add new recurrences indexer
[tkimnguyen]

- Calendar tile now renders recurring events
[obct537]

Fixes:

- Handle error when image tile referenced image is not found
[vangheem]

- Fix use of celery with always eager setting and some tasks
[vangheem]

- Work with ffmpeg as well as avconv
[vangheem]

- Make content listing tile persistent. This fixes issues with saving
data to content listing tile.
[vangheem]

------------------

Fixes:

- Fix reindexing causing `last_modified_by` index to get overwritten
[lucid-0,vangheem]

- Fix 2.0.41 upgrade step that cleared `slot_tiles` setting and
attempt to fix missing `slot_tiles` on sites that have been
upgraded since.
[vangheem]

------------------

New:

- Upgrade to latest collective.elasticsearch.
New versions include,
`collective.celery=1.1.2`,
`collective.elasticsearch=2.0.2`,
`celery=4.2.1`,
`billiard = 3.5.0.4`,
`kombu = 4.2.1`,
`redis = 2.10.5`

Fixes:

- Fix z-index issue with recurrence modal for events
[robzonenet]

- Fix import Folder to not customize layout when text is empty
[vangheem]

- Fixed broken update step
[obct537]