Cloned existing dev environment as base for env-vars environment + added env-vars environment to environments manifest
Added neam/php-app-config as composer dep
Initial version of env-vars environment
Added support for DATABASE_TABLE_PREFIX config var
Tweaked required/expected status of test database configuration
Made expected config declarations more readable after feedback from @schmunk42
refactored file locations (WIP)
fix typo in command app/configure
Merge pull request #117 from Quexer69/patch-1

fix typo in command app/configure
added development info
updated ENV based app configuration
updated deps
fixed typo
added .env to gitignore
fixed includes
refactored application init and setup
Merge commit 'cbbc77e4088d2e1f5e993ad9554537e0919d331b' into 4.0
updated docs
updated deps
updated installation instructions