update build number, which was incorrect. Add an easy way for mods to ignore updates

src/Config.h

@@ -25,7 +25,7 @@
 #endif
 
 #ifndef BUILD_NUM
-#define BUILD_NUM 248
+#define BUILD_NUM 249
 #endif
 
 #ifndef SNAPSHOT_ID
@@ -40,6 +40,8 @@
 #endif
 //VersionInfoEnd
 
+//#define IGNORE_UPDATES //uncomment this for mods, to not get any update notifications
+
 #if defined(SNAPSHOT)
 #define IDENT_RELTYPE "S"
 #elif defined(BETA)

src/client/Client.cpp

@@ -623,10 +623,12 @@ void Client::Tick()
 				}
 #endif
 
+#ifndef IGNORE_UPDATES
 				if(updateAvailable)
 				{
 					notifyUpdateAvailable();
 				}
+#endif
 			}
 			catch (json::Exception &e)
 			{