* intial commiy
* cleaning code
* added makeCredential to s3.js and removed extra module dependecy
* lint fixes
* minor fix
* minor fixes
* changed encoding type from string to any
* added new env var to env.sample
The max size should be an integer rather than a string (environment variables
are strings). More strict s3 implementations reject the upload because they do
not consider the policy valid if a string is used rather than an integer.