added support for preprocessing environment variables
added support for preprocessing environment variables
rolled back unwanted changes
changed to ExpandEnvironmentVariables
Merge pull request #386 from mastoj/master

Issue #380 Environment variables in path for directives
Added SourceException to CompileExceptionInfo to allow proper print out
Merge pull request #387 from filipw/exceptioninfo

prevent ugly ExceptionInfo message in REPL
Increment version to v0.6.0
Increment version to v0.7.0-alpha