Added the force relay to the creative tab.

MODSRC/vazkii/botania/common/core/BotaniaCreativeTab.java

@@ -56,6 +56,7 @@ public final class BotaniaCreativeTab extends CreativeTabs {
 		addBlock(ModBlocks.altar);
 		addBlock(ModBlocks.runeAltar);
 		addBlock(ModBlocks.pylon);
+		addBlock(ModBlocks.pistonRelay);
 		addBlock(ModBlocks.unstableBlock);
 		addBlock(ModBlocks.manaBeacon);
 		addItem(ModItems.signalFlare);