MetaCall v0.2.3 [2020-07-03]

• Undo changes from last commit, there is no need to make paths relative to metacall.json, instead we can safely use script path as a root directory because there is not any other use case different for this functionality than metacall FaaS, and it does not need relative paths because it acts like a s3 bucket.
• added relative paths to file loader load_from_file, load from config still not implemented
• Add support for subfolders in file loader for mapping relative paths to functions instead of file name.
• Update npm ignore and version.
• Update error in node port readme.
• Update readme info and version of node port.
• Testing file_loader with folders
• Add thread safety in NodeJS for function calls, add logs and other code from node.
• Solve minor bug in logs for pretty format.
• Improve cmake for NodeJS.