Fixes an error caused by the BuildTools directory not being created
Creates functions for writing to files in CommonFunctions
Adds some more error info to the log when BuildTools fails to download
Fixes some typos
Makes sure all visible text is logged
Makes it possible to load a controller without generating a GUI, for better testing
Makes sure not to try and parse empty profile lines
Saves controller settings in a more readable and appendable format
Adds code for using the correct java version for the occasion
Adds a new function for writing to files
Saves the downloaded BuildTools version to the server version container
Adds a check to see whether the BuildTools file exists
Adds a helper function for reading local files
Makes the servers be responsible for their own consoles
Starts reading from console once a server starts, and stops once the server stops
Makes reading from a buffered reader read character by character rather than line by line to fix reading from streams
Makes sure each server's console is read on different threads to prevent lockup
Prevents possible console bugs caused by only reading servers already enabled on startup
Drops the idea of using serializable
Adds a new controller object which takes care of profiles and saving
Moves profile independent settings to its own file
Makes saving and loading from file a lot cleaner
Fixes the bug preventing lastly used profile from loading
Makes the profile object only do profile things
Moves gui initialization to the controller object
Updates vanilla version from 1.16.1 to 1.16.2
Moves backup to common functions
Adds comments to Collection
Makes some variable and function names more descriptive
Adds some new methods for showing messsages and errors
Adds a lot of missing comments
Enhances some existing comments
