fix(subscription): Updated type for effects subscription (#97)

Author: atscott

src/effects-subscription.ts

@@ -1,18 +1,17 @@
 import { OpaqueToken, Inject, SkipSelf, Optional, Injectable, OnDestroy } from '@angular/core';
-import { Store } from '@ngrx/store';
+import { Action, Store } from '@ngrx/store';
 import { Observer } from 'rxjs/Observer';
 import { Subscription } from 'rxjs/Subscription';
 import { merge } from 'rxjs/observable/merge';
 import { mergeEffects } from './effects';
-import { Actions } from './actions';
 
 
 export const effects = new OpaqueToken('ngrx/effects: Effects');
 
 @Injectable()
 export class EffectsSubscription extends Subscription implements OnDestroy {
   constructor(
-    @Inject(Store) private store: Observer<Actions>,
+    @Inject(Store) private store: Observer<Action>,
     @Optional() @SkipSelf() public parent: EffectsSubscription,
     @Optional() @Inject(effects) effectInstances?: any[]
   ) {