Improved exceptions

Many exceptions got an improvement due to changed class or description or details it is providing.
Is not complete, needs to be done in patches in the regions, where it is needed, since some are just
swallowed.

Removed total usage of pure RuntimeExceptions to 0.

src/main/java/appeng/me/NetworkEventBus.java

@@ -71,16 +71,16 @@ public class NetworkEventBus
 							classEvents.put( listAs, thisEvent );
 						}
 						else
-							throw new RuntimeException( "Invalid ME Network Event Subscriber, " + m.getName() + "s Parameter must extend MENetworkEvent." );
+							throw new IllegalStateException( "Invalid ME Network Event Subscriber, " + m.getName() + "s Parameter must extend MENetworkEvent." );
 					}
 					else
-						throw new RuntimeException( "Invalid ME Network Event Subscriber, " + m.getName() + " must have exactly 1 parameter." );
+						throw new IllegalStateException( "Invalid ME Network Event Subscriber, " + m.getName() + " must have exactly 1 parameter." );
 				}
 			}
 		}
 		catch( Throwable t )
 		{
-			throw new RuntimeException( "Error while adding " + c.getName() + " to event bus", t );
+			throw new IllegalStateException( "Error while adding " + c.getName() + " to event bus", t );
 		}
 	}
 
@@ -179,7 +179,7 @@ public class NetworkEventBus
 				AELog.severe( "Offending Class: " + obj.getClass().getName() );
 				AELog.severe( "Offending Object: " + obj.toString() );
 				AELog.error( e1 );
-				throw new RuntimeException( e1 );
+				throw new IllegalStateException( e1 );
 			}
 
 			if( e.isCanceled() )