Redturtle.tiles.management

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- Fix pypi brown bag release
[cekk]

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- Add a loader when tiles are fetched
[cekk]
- Remove empty managers when user can't add tiles
[cekk]
- Refactor manager render view. Now is lighter (no more unused Plone body macros)
and can be used also in static renders
[cekk]

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- Fix IE11 compatibility: add babel-polyfill to correctly handle CustomEvent raise
[cekk]

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- Fix README code syntax
[cekk]

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- Massive changes in tiles storing (with p.a.blocks plone.layoutaware behavior)
and in tiles management: now it's a pattern that can be instantiated several
times in the view
[cekk]
- Add controlpanel to configure a list of addable tiles from registered ones.
[cekk]
- Add icon and button color for action hide tile [nekorin]
- Handle error message when there are problems fetching tiles
[cekk]
- Added an event dispatched when tiles are added to the DOM [nzambello]
- Drop support for Plone4. Use branch 0.x for Plone 4
[cekk]

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- Fixed resources import in tiles_view [pnicolli]
- Fixed rolemap. Permission to edit tiles given to 'Editor' 10460 [arsenico13]
- .DS_Store added to .gitignore and MANIFEST [arsenico13]
- Fixed tiles edit link. This fixes the edit capability when a page is a default view for a folder. [arsenico13]