removed legacy view
Update 51-fig.md
add info for APP_PRETTY_URLS
update fig.md, notice for env variables
dont set frontend and backend env vars here

only use your `.env` file to basically configure your app's.
Merge pull request #121 from Quexer69/master

add info for APP_PRETTY_URLS
Update README.md
Update 51-vagrant.md
Update 51-vagrant.md
Update README.md
Update README.md
Update 51-vagrant.md
Create 51-vagrant-docker.md
updated vagrant-docker config
Merge commit 'ad4c83ea026053f6fb4c68f39ff02e2db17c94ea'
updated vagrant-docker docs
Update 51-vagrant-docker.md
removed unneeded ENV variables
Merge commit '81d6fbe37a7e1001f9a36653e3f6e3ade05b270e'
updated docs, removed legacy file