Switched to using a union type
Switched to using a union type

Changed T to T | MithrilPromise<T> in the MithrilPromise and
MithrilPromiseProperty definitions

impinball/mithril.js,impinball/mithril.js,barneycarroll/mithril.js,lhorie/mithril.js,pygy/mithril.js,pygy/mithril.js,barneycarroll/mithril.js,tivac/mithril.js,MithrilJS/mithril.js,MithrilJS/mithril.js,tivac/mithril.js,lhorie/mithril.js