[erlang-patches] [patch] Added application:get_env/3

[Serge Aleynikov]

Added an application:get_env/3 function variant that provides a default
value for a configuration parameter:

	application:get_env(App, Key, Default) -> Value.

git fetch git://github.com/saleyn/otp.git get_env

https://github.com/saleyn/otp/compare/erlang:master...get_env
https://github.com/saleyn/otp/compare/erlang:master...get_env.patch