v0.2.0

Change behavior on Parse to return an error if failed

v0.1.1

Add license

v0.1.0

Ready to prod

• Add readme
• Make threadsafe
• Panic on parse fail for mandatory settings

v0.0.1

First commit - basic funcionallity.
Allows to create settings with default values or mandatory ones.
Parse values for those settings from environment. (it can be parsed multiple times at runtime)
Get those values