build system: consolidate all userspace program Makefiles into one

remove old log function, make \n mandatory for printing a new line

rewrite general IO using an IO-manager

add system call to look up the names of functions

add basic stack tracing ability

notify other tasks of a exception happening ...

subscribe to the interrupt 0 to be notified about exceptions

fix interrupts occuring while in user mode

rename service proivder to service function ...

now matches the documentation in the wiki

add kernel events ...

kernel events get triggered by the kernel when certain things happen.
first example: log a message whenever a new programm is loaded from the initrd

improve log format by padding space for service names

add source service names to log messages

log to vga display

use stringmap for communication between processes

seperate log into log file and a parallel driver

add events

add a static libary and fix interrupts

enable freeing of memory

add passing data to a syscall

use registers for passing data to system calls

add the ability to create multiple services and repair inter-service communication