Using the loading plugin (used for class transformer) as core mod instead of the dummy one.

Also fixed typo in the url in the mod info... how long has that been there?

src/main/resources/mcmod.info

@@ -4,7 +4,7 @@
   "description": "This mod adds modular computers and robots that can be programmed in Lua.",
   "version": "${version}",
   "mcversion": "${mcversion}",
-  "url": "http://oc.ci.li/",
+  "url": "http://oc.cil.li/",
   "authorList": ["Florian 'Sangar' Nuecke", "Johannes 'Lord Joda' Lohrer", "Everyone who contributed to the mod on Github - thank you!"],
   "credits" : "Inspired by a couple of other mods, most notably ComputerCraft.",
   "logoFile" : "assets/opencomputers/textures/gui/logo.png",

src/main/scala/li/cil/oc/OpenComputersCore.scala

@@ -1,8 +0,0 @@
-package li.cil.oc
-
-import cpw.mods.fml.common.Mod
-
-// This empty mod is used to avoid cyclic dependencies with mods we depend on
-// for optional interfaces, for example, but that also depend on our API.
-@Mod(modid = "OpenComputers|Core", name = "OpenComputers (Core)", version = "1.0.0", modLanguage = "scala")
-object OpenComputersCore

src/main/scala/li/cil/oc/common/launch/TransformerLoader.scala

@@ -2,6 +2,10 @@ package li.cil.oc.common.launch
 
 import java.util
 
+import com.google.common.eventbus.EventBus
+import cpw.mods.fml.common.DummyModContainer
+import cpw.mods.fml.common.LoadController
+import cpw.mods.fml.common.ModMetadata
 import cpw.mods.fml.relauncher.IFMLLoadingPlugin
 import cpw.mods.fml.relauncher.IFMLLoadingPlugin.MCVersion
 import cpw.mods.fml.relauncher.IFMLLoadingPlugin.TransformerExclusions
@@ -9,12 +13,25 @@ import li.cil.oc.common.asm.ClassTransformer
 
 @TransformerExclusions(Array("li.cil.oc.common.asm"))
 @MCVersion("1.7.10")
-class TransformerLoader extends IFMLLoadingPlugin {
-  override def getAccessTransformerClass = null
+class TransformerLoader extends DummyModContainer({
+  val md = new ModMetadata()
+  md.authorList.add("Sangar")
+  md.modId = "OpenComputers|Core"
+  md.version = "1.0.0"
+  md.name = "OpenComputers (Core)"
+  md.url = "http://oc.cil.li/"
+  md.description = "OC core mod used for class transformer and as API owner to avoid cyclic dependencies."
+  md
+}) with IFMLLoadingPlugin {
+  val instance = this
+
+  override def getModContainerClass = getClass.getName
+
+  override def registerBus(bus: EventBus, controller: LoadController) = true
 
   override def getASMTransformerClass = Array(classOf[ClassTransformer].getName)
 
-  override def getModContainerClass = null
+  override def getAccessTransformerClass = null
 
   override def getSetupClass = null