* Replace envconfig with env
* Adjust config options and processing
* Added _FILE variant for all password vars.
* Try pathenvconfig
* Revert everything so far
* Use our fork of envconfig with custom lookup
* Use our fork of envconfig with custom lookup
* Test compose timeout option
* Remove secret resolving and specific _FILE config
* Fix timing issue in swarm tests
* Revert "Test compose timeout option"
This reverts commit ab50b21748, reversing
changes made to 0282514b2b.
Revert "Test compose timeout option"
This reverts commit 0282514b2b.
* Use offen/envconfig v1.5.0
* Add info about _FILE in README
* Value > File. Panic on file error. Panic on duplicate presence.
* Test panic on duplicate vars and panic on file error.