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/client/render/TESRWrapper.java

@@ -33,7 +33,6 @@ import cpw.mods.fml.relauncher.SideOnly;
 import appeng.block.AEBaseBlock;
 import appeng.core.AELog;
 import appeng.tile.AEBaseTile;
-import appeng.util.Platform;
 
 
 @SideOnly( Side.CLIENT )
@@ -65,9 +64,6 @@ public class TESRWrapper extends TileEntitySpecialRenderer
 
 				Tessellator tess = Tessellator.instance;
 
-				if( Platform.isDrawing( tess ) )
-					return;
-
 				try
 				{
 					GL11.glPushMatrix();
@@ -76,9 +72,6 @@ public class TESRWrapper extends TileEntitySpecialRenderer
 					this.renderBlocksInstance.blockAccess = te.getWorldObj();
 					this.blkRender.renderTile( (AEBaseBlock) b, (AEBaseTile) te, tess, x, y, z, f, this.renderBlocksInstance );
 
-					if( Platform.isDrawing( tess ) )
-						throw new RuntimeException( "Error during rendering." );
-
 					GL11.glPopAttrib();
 					GL11.glPopMatrix();
 				}
@@ -87,7 +80,7 @@ public class TESRWrapper extends TileEntitySpecialRenderer
 					AELog.severe( "Hi, Looks like there was a crash while rendering something..." );
 					t.printStackTrace();
 					AELog.severe( "MC will now crash ( probably )!" );
-					throw new RuntimeException( t );
+					throw new IllegalStateException( t );
 				}
 			}
 		}