* Export PG* envs when backing up postgres
* Export PG* envs when restoring postgres from backup
* Prevent postgres connection from dropping all at ones
* Alter postgres backups docs
Include another crucial prerequisite.
* "feel free switching" -> "feel free to switch"
* Address the feedback
* Re-organize compose/ into environment-specific file groups
Closes#1316.
* Commit missing files
That was weird: git failed to commit one specific folder previously
