Flarum/core 1.0 ready

1.0.0

Only try and validate an email is we have one #2 #4

0.3.0

Beta 16

0.2.1: Add composer meta, use events extender (#3)

* Update composer meta, use Event extender

* Reduce core constraint back to 14 as we don't need to require 15 here

beta 14 compat

0.2.0

beta 14