流式布局添加新内容拉伸的功能，实现了#15的功能。

@欧柏泉 · @欧柏泉 · commit 004aa967c85a · 2016-05-03T00:28:21.000+08:00
diff --git a/MyLayout/Lib/MyFlowLayout.m b/MyLayout/Lib/MyFlowLayout.m
@@ -373,7 +373,7 @@ -(void)calcAutoArrangeSingleLineSubviews:(NSMutableArray*)sbs
     }
     
     
-    for (int i = index; i < sbs.count; i++) {
+    for (NSInteger i = index; i < sbs.count; i++) {
         
         
         NSMutableArray *calcArray2 = [NSMutableArray arrayWithArray:calcArray];

Original file line number	Diff line number	Diff line change
`@@ -373,7 +373,7 @@ -(void)calcAutoArrangeSingleLineSubviews:(NSMutableArray*)sbs`
`373`	`373`	`}`
`374`	`374`
`375`	`375`
`376`		`- for (int i = index; i < sbs.count; i++) {`
	`376`	`+ for (NSInteger i = index; i < sbs.count; i++) {`
`377`	`377`
`378`	`378`
`379`	`379`	`NSMutableArray *calcArray2 = [NSMutableArray arrayWithArray:calcArray];`