v0.2.0

Added

• Linux as supported OS.
• file_extension filesystem function.
• symlink filesystem function.
• git::is_gist function to git package to detect if git repository is GitHub Gist repository.
• Configuration functions for env package.

Changed

• is_file_remote function uses own regex instead of git::protocol function.
• env:config command accepts git repository as a remote configuration.
• env:config command provides symbolic link to local configuration.