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/integration/modules/InvTweaks.java

@@ -46,7 +46,7 @@ public class InvTweaks extends BaseModule implements IInvTweaks
 	public void postInit()
 	{
 		if( api == null )
-			throw new RuntimeException( "InvTweaks API Instance Failed." );
+			throw new IllegalStateException( "InvTweaks API Instance Failed." );
 	}
 
 	@Override

src/main/java/appeng/integration/modules/NEI.java

@@ -146,7 +146,7 @@ public class NEI extends BaseModule implements INEI, IContainerTooltipHandler
 		}
 		catch( Throwable t )
 		{
-			throw new RuntimeException( "Invalid version of NEI, please update", t );
+			throw new IllegalStateException( "Invalid version of NEI, please update", t );
 		}
 	}
 

src/main/java/appeng/integration/modules/NEIHelpers/NEIWorldCraftingHandler.java

@@ -187,9 +187,13 @@ public class NEIWorldCraftingHandler implements ICraftingHandler, IUsageHandler
 		{
 			return this.getClass().newInstance();
 		}
-		catch( Exception e )
+		catch( InstantiationException e )
 		{
-			throw new RuntimeException( e );
+			throw new IllegalStateException( e );
+		}
+		catch( IllegalAccessException e )
+		{
+			throw new IllegalStateException( e );
 		}
 	}