Mod: Improved throughput performance. Set q_hiwat of stream head of control stream.

Mod: removed old code within comments

Mod: Changed version number

Fix: removed unneccessary cast within tun_ioctl
Merge commit 'ddc5099'

Conflicts:
	tun.c
Mod: modified comment field
mod: chnage gnu ld option from elf_x86_64 to elf_x86_64_sol2. Add -Wall option for GCC