Make all autowired members in examples and the tutorial private

To set a proper example!

TUTORIAL.md

@@ -111,7 +111,7 @@ If you want to autowire a type registered to multiple concrete types, specify a
 ```d
 class BluePaint {
 	@Autowire!Blue
-	public Color color;
+	private Color color;
 }
 ```
 If you registered multiple concrete types to the same supertype and you do not resolve using a qualifier, a ResolveException is thrown stating that there are multiple candidates for the type to be resolved.
@@ -124,7 +124,7 @@ If you have registered multiple concrete types to a super type, you can autowire
 
 class ColorMixer {
 	@Autowire
-	public Color[] colors;
+	private Color[] colors;
 }
 
 dependencies.register!(Color, Blue);
@@ -171,10 +171,10 @@ This means that after the registration of an application context some dependenci
 class Context : ApplicationContext {
 
 	@Autowire
-	public SomeClass someClass;
+	private SomeClass someClass;
 	
 	@Autowire
-	public SomeOtherClass someOtherClass;
+	private SomeOtherClass someOtherClass;
 
 	public override void registerDependencies(shared(DependencyContainer) container) {
 		container.register!SomeClass;

example/annotations/app.d

@@ -27,11 +27,11 @@ class SuperSecurityDevice {
 
 class SecurityManager {
 	@Autowire
-	public SuperSecurityDevice levelOneSecurity;
+	private SuperSecurityDevice levelOneSecurity;
 
 	@Autowire
 	@AssignNewInstance
-	public SuperSecurityDevice levelTwoSecurity;
+	private SuperSecurityDevice levelTwoSecurity;
 }
 
 void main() {

example/applicationcontext/app.d

@@ -12,7 +12,7 @@ import std.stdio;
 class TownSquare {
 
 	@Autowire
-	public MarketStall marketStall;
+	private MarketStall marketStall;
 
 	public void makeSound() {
 		marketStall.announceGoodsForSale();
@@ -45,7 +45,7 @@ class MarketStall {
 class ExampleApplicationContext : ApplicationContext {
 
 	@Autowire
-	public Goods goods;
+	private Goods goods;
 
 	public override void registerDependencies(shared(DependencyContainer) container) {
 		container.register!(Goods, Fish);

example/arraycompletion/app.d

@@ -33,7 +33,7 @@ class CardboardBoxPie : Pie {
 
 class PieEater {
 	@Autowire
-	public Pie[] pies;
+	private Pie[] pies;
 
 	public void eatThemAll() {
 		foreach(pie ; pies) {

example/qualifiers/app.d

@@ -29,10 +29,10 @@ class HybridCar {
 	alias KilometersPerHour = int;
 
 	@Autowire!FuelEngine
-	public Engine fuelEngine;
+	private Engine fuelEngine;
 
 	@Autowire!ElectricEngine
-	public Engine electricEngine;
+	private Engine electricEngine;
 
 	public void moveAtSpeed(KilometersPerHour speed) {
 		if (speed <= 45) {

example/quickstart/app.d

@@ -12,7 +12,7 @@ class RelationalDatabase : Database {}
 
 class DataWriter {
 	@Autowire
-	public Database database; // Automatically injected when class is resolved
+	private Database database; // Automatically injected when class is resolved
 }
 
 void main() {