Fix event error

[PabstMirror]

With full modset I get nonstop errors after #314

Error select: Type Bool, expected Array,String,Config entry
File x\cba\addons\events\XEH_postInit.sqf, line 8

allVariables cba_events_eventNamespaceJIP; has "cba_xeh_isinitialized" and "cba_xeh_isprocessed" which are just true

So just a funny side effect of the XEH fallback loop running and setting unexpected variables on the logic.

[commy2]

That was exactly what the isEqualTo EVENT_PVAR_STR is for. I didn't even consider that there could be non arrays stored in that namespace. derp.