Ignore .directory files.
Add autorestore feature

* add a new "data" volume
* restore all .backup files in data/restore on startup in new database
* restore all .sql files in data/restore on startup in new database
* mention this in documentation
New NEWS file for news.
Bump version to 1.5
Load SFCGAL in new databases.
Use PDAL 0.9.8 as master often breaks.
Merge some command - less layers.
Fix creating sfcgal in pggis db.
Add texture type to database as not yet in sfcgal.
Update docker build to latest version.