Remove defaultSettings usage from the docs.

Given the addition/promotion of AutoPlugins, remove
the references to the previously necessary
Defaults.defaultSettings method.

src/sphinx/Examples/Full-Configuration-Example.rst

@@ -16,7 +16,7 @@ into multiple files.
       val buildVersion      = "2.0.29"
       val buildScalaVersion = "2.9.0-1"
 
-      val buildSettings = Defaults.defaultSettings ++ Seq (
+      val buildSettings = Seq (
         organization := buildOrganization,
         version      := buildVersion,
         scalaVersion := buildScalaVersion,

src/sphinx/Getting-Started/Full-Def.rst

@@ -113,7 +113,7 @@ The following two files illustrate. First, if your project is in
 
         lazy val root = Project(id = "hello",
                                 base = file("."),
-                                settings = Project.defaultSettings ++ Seq(sampleKeyB := "B: in the root project settings in Build.scala"))
+                                settings = Seq(sampleKeyB := "B: in the root project settings in Build.scala"))
     }
 
 Now, create `hello/build.sbt` as follows:

src/sphinx/faq.rst

@@ -444,24 +444,28 @@ before it is initialized with an empty sequence.
         settings = Seq(
           libraryDependencies += "commons-io" % "commons-io" % "1.4" % "test"
         )
-      )
+      ).disablePlugins(plugins.IvyModule)
     }
 
-To correct this, include the default settings, which includes
-`libraryDependencies := Seq()`.
+To correct this, include the IvyModule plugin settings, which includes
+`libraryDependencies := Seq()`.  So, we just drop the explicit disabling.
 
 ::
 
-    settings = Defaults.defaultSettings ++ Seq(
-      libraryDependencies += "commons-io" % "commons-io" % "1.4" % "test"
-    )
+    object MyBuild extends Build {
+      val root = Project(id = "root", base = file("."),
+        settings = Seq(
+          libraryDependencies += "commons-io" % "commons-io" % "1.4" % "test"
+        )
+      )
+    }
 
 A more subtle variation of this error occurs when using :doc:`scoped settings </Getting-Started/Scopes>`.
 
 ::
 
     // error: Reference to uninitialized setting
-    settings = Defaults.defaultSettings ++ Seq(
+    settings = Seq(
       libraryDependencies += "commons-io" % "commons-io" % "1.2" % "test",
       fullClasspath := fullClasspath.value.filterNot(_.data.name.contains("commons-io"))
     )