Permit long-number comparison

Compare long integers (64b) rather than 32-bit integers.
Add flag expires world event

Flag control that you should never reasonably use but might as well
exist.
Merge branch 'master' of https://github.com/aufdemrand/Denizen
Construct players by name better

hasPlayedBefore returns stupidly if the player file hasn't been updated
since the player first joined. That check wasn't need anyway.
Fix up the permission command

Handle null worlds appropriately (real nulls)
Fix up the group command

Handle nulls appropriately (real nulls)
add tag element.add_int

Better math, yay
Add div/mul/sub _int math tags

Advanced math options are useful.
Add deprecation warnings to old style tags

These have all been deprecated - now we're increasing the deprecation
level, building up to the actual removal.
Add tag queue.player

Advanced queue control is useful
Add tag queue.npc

Advanced queue control and backwards commit messages.
Allow determine inside loops

foreach/repeat/while didn't allow determine properly... now they do!
Merge pull request #825 from mcmonkey4eva/master

Pull request for patches mainly and a few features
Merge branch 'master' of https://github.com/aufdemrand/Denizen