server.c: Remove trailing whitespaces
server.c: Fix potential buffer overflow in handle_stat()
server.c: Correctly set the output pointer in handle_stat()
Fix regular file creation and update test sequence
server.c: Make handle_lookup() return output via pointer in argument
server.c: Implement handle_write()
server.c: Fix lockup in bitmap_alloc() after the first byte is full
server.c: Remove handle_lookup() test code