Fix null pointer in ChatBaseComponent's hashCode method

nms-patches/ChatBaseComponent.patch

@@ -0,0 +1,11 @@
+--- ../work/decompile-8eb82bde//net/minecraft/server/ChatBaseComponent.java	2015-01-11 18:45:55.785438005 +0000
++++ src/main/java/net/minecraft/server/ChatBaseComponent.java	2015-01-11 18:45:55.785438005 +0000
+@@ -91,7 +91,7 @@
+     }
+ 
+     public int hashCode() {
+-        return 31 * this.b.hashCode() + this.a.hashCode();
++        return 31 * this.getChatModifier().hashCode() + this.a.hashCode(); // CraftBukkit - fix null pointer
+     }
+ 
+     public String toString() {