Merge branch '1.7.5-misc' into 'master'

1.7.5 Miscellaneous fixes.

 * FIX: Bullseye now affects more than 0 talents at rank 1.
 * FIX: Collapse can no longer trigger instant critical hits.
 * FIX: Self-Judgement applies against damage from effects, such as Greater Weapon Focus.
 * FIX: Taint of Purging is marked as a quest item like all other alchemist rewards.
 * BALANCE: Change Blood Rush’s bleed calculation to work the same as Blood Bath and Scoundrel.  Lowered bleed multiplier.
 * POSSIBLE FIX: Simplify green no_healing shader check.  Since 0 healing is a yes/no thing, there is no need for old_healwarn
 * QOL: Changed Rockwalk's targeting to not auto-accept because it is a movement skill.

See merge request !783