Refactored the container image attributes (tag, os, arch) and made os and arch not mandatory. Improved navigation and added arch checks when submitting tasks.

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

Added support for searching in the container name and filtering on container type from the container page.

Parametrized remote tasks host and access key. Added container name. Global refactoring and cleanup.

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.