* switch proxy to config file
pull in single flight changes
* changes for single-flight
* intermediate stage. All tests passing. pkg still has env refs
* remove all env references
* delete config/env entirely
* fix failing tests
* create the config.toml file as part of dev setup
* create config file only if it doesn't exist
* update Dockerfiles to use config file
* move composing elements to the top
* verbose parameter naming
* newline
* add flag for config file path
* update docs with config file flag
* remove unnecessary nil check
* use filepath.join
* rename redis port to address
* fix path.join
* fix issues after merge
* add vendor dir
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