added dock-switch to osx plugin. switches between 3d and 2d

plugins/osx.plugin.bash

@@ -11,3 +11,27 @@ function tab() {
     end tell
 EOF
 }
+
+# this one switches your os x dock between 2d and 3d
+# thanks to savier.zwetschge.org
+function dock-switch() {
+
+    if [ $(uname) = "Darwin" ]; then
+        
+        if [ $1 = 3d ] ; then
+            defaults write com.apple.dock no-glass -boolean NO
+            killall Dock
+
+        elif [ $1 = 2d ] ; then
+            defaults write com.apple.dock no-glass -boolean YES
+            killall Dock
+
+        else
+            echo "usage:"
+            echo "dockswitch 2d" 
+            echo "dockswitch 3d."
+        fi
+    else
+        echo "sorry. you're currently not using os x"
+    fi
+}