Nothing that causes any problems in game but still a minor bug.
"version": "1.1.6.4, -> "version": "1.1.6.4",

Error:
The mcmod.info file in TaintedMagic-1.1.6.4.jar cannot be parsed as valid JSON. It will be ignored
com.google.gson.JsonSyntaxException: com.google.gson.stream.MalformedJsonException: Unterminated object at line 7 column 5