* issues moved to Bugzilla

* renamed 'flex-wrap' keyword 'none' to 'nowrap'
* moved 'flex-line-pack' property to Alignment section
* promoted 'display' and "flex items" one level up to align with multi-line in TOC
* added auto-margin alignment
* algorithm: updated to handle auto-margin
* algorithm: added a step in line sizing for flex-line-pack:stretch
* page breaking: breaks inside items are not allowed in any multiline flexboxes.

Author: alexmog1