Cpskin-core

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- WEB-3302: Fix bad value in slick config
[thomlamb]

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- WEB-3302: Add breckpoint parameters for slick
[thomlamb]

- WEB-3302: Filter slider on index view based on `use_slick` parameter
[mpeeters]

- WEB-3302: Implement slick slider
[mpeeters]

- Fixed ComponentLookupError: cmf.ManagePortal error,
reported into the issue 25
[macagua]

- Moved these translations into cpskin.locales package
[macagua]

- Add more improvements for i18n support
[macagua]

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- Add missing listing_view view to Collection view_methods
Detected because Solgema.fullcalendar uninstallation was broken
[laulaz]

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- Fix is_one_day method when there is no real occurence on event.
[bsuttor]

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- Override view to keep schedule in top of directory view. [WEB-3207]
[boulch]

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- Add missing soft dependency on collective.lesscss
[laulaz]

- Pinned collective.sendinblue<2.0 in setup.py (2.x abandon Plone4 support).
[boulch]

- Change method calling. To avoid a bug with request in Plone5, we change update method in collective.sendinblue.
[boulch]