Tidy up imports, add missing exports, rename some events for consistency

lib/events/RegionInfoReplyEvent.ts

@@ -0,0 +1,15 @@
+import * as Long from 'long';
+import {UUID} from '..';
+
+export class RegionInfoReplyEvent
+{
+    X: number;
+    Y: number;
+    name: string;
+    access: number;
+    regionFlags: number;
+    waterHeight: number;
+    agents: number;
+    mapImageID: UUID;
+    handle: Long
+}