Merge pull request #332 from franckstauffer/stock

Various improvements on stocks and collections
[NEW] New plugin Timeline
[UPDATE] Some update in User Module for Timeline
[UPDATE] Update MarkdownParser
Added missing TagsInfo REST action.
[UPDATE] Refactoring Timeline and Admin MarkdownParser
[UPDATE] Refactor User Profile call in Timeline and delete Resume part
Merge pull request #333 from renaudJennyRBS/timeline

New module Timeline (first part). Markdown refactoring
- Model `Rbs_Media_Image` is no longer localized.
- `width` and `height` properties are now set on creation and update.
- Added `width` and `height` columns in Image list.
Merge pull request #334 from fredericbonjour/Admin

Model `Rbs_Media_Image` is no longer localized.
[UX] Categories on product
Added RestfulDocumentInterface

With two methods to complete DocumentResults and DocumentLinks