Removed all (now non-existent) batch clay ractions from kobold entity files.

Meph tells me all these reactions were removed on purpose, so this cleans
up the entity files to match.
Hotkey update: alchemist

Change alchemist-related hotkeys to remove duplicates and increase
sensibility. Helps #64
Hotkey update: armok

Change Armok-related hotkeys to remove duplicates and increase
sensibility. Helps #64
Hotkey updates: boneyard - caster

More hotkey updates to remove duplicates and increase sensibility. Helps
#64
Dwarves can get influenza, meningitis, and pneumonitis once more.

These had been disabled on a previous release for being too virulent,
but with thistleknot's changes they should be less problematic now.

Thanks to @Meph248 for spotting this.
Merge remote-tracking branch 'sage/hotkey_fix'

This merge removes many hotkey duplicates, and gives others more
sensible values.

* sage/hotkey_fix:
  Hotkey updates: boneyard - caster
  Hotkey update: armok
  Hotkey update: alchemist
Merge branch 'master' into orc_rebalance

* master:
  Dwarves can get influenza, meningitis, and pneumonitis once more.
  Hotkey updates: boneyard - caster
  Hotkey update: armok
  Hotkey update: alchemist
  Removed all (now non-existent) batch clay ractions from kobold entity files.