Beta 8

Added internal pthreads library.
Added new missing math functions
Added dprintf
Fixed a memory leak when using posix_memalign
Some constructors/destructors changes
Fixed ncurses/termios problems. Now ncurses can be used without any problem
Added stdio_ext functions (except __freadptr)
Some test progams makefile changes. now it is possible to compile tests using GNUMakefile
Many other internal changes