Edited Issue: No way to use semicolon in environment variable [1315]

There is no way to define an environment variable with a semicolon in its value (which is kinda ridiculous, because semicolons are traditionally used to separate multiple values in environment variables, e.g. PATH). We should either change the delimiter (VC++ uses newline for this), or else provide some means of escaping the character.

(created from https://nodejstools.codeplex.com/discussions/554639)