Feature: Read a config from a string

[acrisci]

The project exposes a method to read a config from a file, but not from a string.

Reading a config from a string would be useful in case the configuration file is an embedded asset within the application such as is possible with go-bindata.

This would allow us to implement a useful feature in Revel.

The implementation may be as simple as exposing the read() method from read.go.

[brendensoares]

@acrisci would you like to contribute a PR to demonstrate this change?

[pedromorgan]

Am into this.. but its ini..

https://github.com/revel/revel/labels/topic-config

Particular multi config and cross applications eg php python and go and mapnick..