Bugfixes. Add hatchet sounds (From BO) for throwing knive

Updated version to 1.6-D3, and change version text color.

Fix incompatible anim files (No JIRA issue key, affects version 1.5.2).

Assassin’s Blade has been nerfed (Melee lunge time change from 0.3 to
0.4 seconds).

Added bounce and flesh hit sounds from black ops for throwing knives.

Fixed hud_icon_assassinblade material not location correct image. (No
JIRA issue key, affects 1.6 dev builds only)