More missing death messages: knockback

[chorby-short]

When getting damaged by being knocked back into a wall, there are still a few different death messages that are missing. Geyser Trap and Aqua Blast do show up on rankings, but not in the game log in the bottom left corner of the screen. In my current version (Beta-4), reclaim trap's geyser Trap counts as the trap itself for death purposes, (similar to grim, disintegration &c.) but also does not appear on the game log like a normal geyser trap. Blast Wave shows up on rankings, and gives the 'friendly fire' log message, but not the 'XXX killed you' log message. Being killed as a result of Repulsion or Elastic proccing doesn't give a log message, and the rankings page don't recognize them (killed by something).