Patched Method Calls in the (Deprecated) Graphics Things to Function Calls

Fixed: DesktopState and ShellWidget now call functions instead of the (replaced) methods.
Fixed Some Deprecated JavaDoc

Fixed: Some errors in very old JavaDoc.
Added Some Missing Lockable Annotations

Fixed: Added missing lockable annotations to function executors in the Process and ProgramExecutor classes.
Replaced "Preset" Priorities

Added: Replaced the old "preset" priority constants in the Prioritized annotation class with new ones which are more flexible.
Added ReturnNextException and Opened Up Function Executor Exception System

Added: The ReturnNextException for quitting the current executor and expressing that the return value of the next invoked executor should be taken.
Added: ExecutorInvokationException is now the superclass of StopExecutionException, ReturnNextException and, for a technical reason, FunctionExecutionException.
Syscall Infrastructure and UserSyscalls

Added: The infrastructure for syscalls. Syscalls are requests of a process to the operating systems (like: What is the content of that file?). The syscall classes provide function definition constants which can be used on processes (permission check) or on the os object (no permission check). Program executors ask their processes to execute the syscall. That way, there is a permission check when program executors access the operating system!
Added: The class UserSyscalls which provides syscalls for user operations, as well as user and group wrappers for permission-safe user and group modifications.