New features realized for the release 1.0.0 RC3 Phobos

Release 1.0.0 RC3 Phobos can be expected next time. .

Realized features:

1. Bug fixes.
2. Layout improvements.
3. Forum layout. Now it is possible to create a menu link to a forum.
4. Added subscript and super script to editor. Example: X² and H₂O