Beta 5

Implemented open() and opendir() and now it is possible to open a directory like open("T:") and use some functions on the returned fd
Changed some socket functions that now use open source code
Implemented new funcions
Fixed a memory leak on fstat
Removed test on check_abort_enabled prior call since it is already checked in the function
Moved rand* functions to prng folder
Implemented syslog (using files)
A lot of other fixes an improvements