Prevent donation of no-donate items in perform_drop()
Remove satiation and quench
Defensive attacks now defined in spells.xml, added electrostatic field as defensive
Secure zset command properly based on zone authorizations
Remove regalers rhapsody
Remove negative effects of hunger and thirst
Remove thirst, nothirst, and nohunger
Potions, being drunk, now count toward fullness
Add keywords for hamstring severed legs
Provide more informative guildmaster messages
Merge pull request #418 from mikeclemson/remove-hunger-and-thirst-concept

Remove hunger and thirst concept
Merge pull request #424 from mikeclemson/guildmaster-messaging-improvements

Provide more informative guildmaster messages
Merge pull request #422 from mikeclemson/add-severed-leg-aliases

Add keywords for hamstring severed legs
Merge pull request #415 from mikeclemson/secure-zset-options

Secure zset command properly based on zone authorizations
Merge pull request #406 from mikeclemson/update-is-defense-attack

Defensive attacks now in spells.xml, added elec field as defensive
Merge pull request #353 from mikeclemson/fix-nodonate-error-message

Prevent donation of no-donate items in perform_drop()
Merge master into fix-coverity-defects branch

I was getting worried about the branches diverging too much.  Happily,
there were only a few conflicts so far.