Store direct specs in the URL

[jverkoey]

This could potentially remove the need to rely on a database to store direct specs and would remove the need to implement an ACL model (the ACL is simply the ownership of the URL). Direct specs could be aggregated and shared in other mediums instead (spreadsheets, issue trackers, etc...).

[rodydavis]

With direct now supporting json import/export it is also possible to embed the json as a script tag in the template. Would be great to also encode the json as a base64 for sure.

#18