Merge pull request #27 from blackhammer25/master

added selection sort for dart

Dart/selection_sort.dart

@@ -0,0 +1,18 @@
+void selectSorting(List list) {
+  if (list == null || list.length == 0) return;
+  int num = list.length;
+  int i, steps;
+  for (steps = 0; steps < num; steps++) {
+    for (i = steps + 1; i < num; i++) {
+      if(list[steps] > list[i]) {
+        change(list, steps, i);
+      }
+    }
+  }
+}
+
+void change(List list, int steps, int i) {
+  int count = list[steps];
+  list[steps] = list[i];
+  list[i] = count;
+}