Moved from Text to Page models, in order to allow building a mini-website inside the platform to provide help and informations.

Removed the new task link in favour of creating new tasks is by hitting the play button on a container.

Added preliminary support for viewing task terminal output (log). move from short_uuid to id. Minor fixes.

Added the Container object including adding custom containers, and prepared for the Compute object. Partially refactored the task view. Minor fixes.

Added support for running tasks on remote compute elements over ssh. Fixes in the stop/delete task clycle management.