Spell.xml has incorrect definition

[gtker]

https://github.com/EmberEmu/Ember/blob/development/dbcs/definitions/client/Spell.xml has an incorrect unknown_flag.

An int32 interrupt_flags should be between category_recovery_time and aura_interrupt_flags instead.

See this PR gtker/wow_dbc#6 for details (I used your XML definitions for vanilla).

[Chaosvex]

Thanks. Spell.xml was a bit of a placeholder but I'll take care of it when I have some free time later in the week, leaving this issue open until then.