Allow user to set tile size

src/com/sheepit/client/Configuration.java

@@ -54,6 +54,7 @@ public class Configuration {
 	private String extras;
 	private boolean autoSignIn;
 	private String UIType;
+	private int tileSize;
 	
 	public Configuration(File cache_dir_, String login_, String password_) {
 		this.login = login_;
@@ -73,6 +74,7 @@ public class Configuration {
 		this.extras = "";
 		this.autoSignIn = false;
 		this.UIType = null;
+		this.tileSize = -1; // ie not set
 	}
 	
 	public String toString() {
@@ -215,6 +217,14 @@ public class Configuration {
 		return this.UIType;
 	}
 	
+	public void setTileSize(int size) {
+		this.tileSize = size;
+	}
+	
+	public int getTileSize() {
+		return this.tileSize;
+	}
+	
 	public void cleanWorkingDirectory() {
 		this.cleanDirectory(this.workingDirectory);
 		this.cleanDirectory(this.storageDirectory);