Java Enums should have their values in uppercase. Removed unnecessary methods that convert an enum to a String and created support for this functionality inside the Enums themselves
Moved getSubscriptions test from separate Test class to the User Test one, because it is a user-related test
Removed getSubsribedFromName test and moved testing of that method in a SubredditTest class. Refactored Subreddits class by removing unecessary method parameters and by indenting code
Refactored Subreddits class to remove unecessary user cookie params, to tune up methods, to pass the SubredditType as an enum.
Implemented tests for all methods of the Subreddits class.
Updated implemented_methods with /subreddits/new method implementation