Xcode project maintenance:

Fix the docs name.
Bring back InfoPlist.strings.
Have the Xcode groups point to the project's directory structure.

src/macosx/Info-Stella.plist

@@ -33,7 +33,7 @@
 		</dict>
 	</array>
 	<key>CFBundleExecutable</key>
-	<string>Stella</string>
+	<string>$(EXECUTABLE_NAME)</string>
 	<key>CFBundleGetInfoString</key>
 	<string>Stella</string>
 	<key>CFBundleHelpBookFolder</key>
@@ -62,10 +62,8 @@
 		<string>10.7.0</string>
 	</dict>
 	<key>NSMainNibFile</key>
-	<string>SDLMain.nib</string>
+	<string>SDLMain</string>
 	<key>NSPrincipalClass</key>
 	<string>SDLApplication</string>
-	<key>«PROJECTNAMEASXML»</key>
-	<string>SDL Cocoa App</string>
 </dict>
 </plist>

src/macosx/stella.xcodeproj/TemplateInfo.plist

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>Description</key>
-	<string>This project builds an SDL-based application with Cocoa menus.</string>
-	<key>FilesToMacroExpand</key>
-	<array>
-		<string>English.lproj/InfoPlist.strings</string>
-	</array>
-</dict>
-</plist>