Add changelog. Fixes #82

Author: soffes

Changelog.markdown

@@ -0,0 +1,25 @@
+# SSToolkit Changelog
+
+### Version 0.1.1
+
+**Unreleased**
+
+* Added `SSCollectionViewItemAnimation` to SSCollectionView
+
+* Added basic tests
+
+* Added begin/end updates to SSCollection with the following methods:    
+
+        - (void)beginUpdates;
+        - (void)endUpdates;
+        - (void)insertItemsAtIndexPaths:(NSArray *)indexPaths withItemAnimation:(SSCollectionViewItemAnimation)animation;
+        - (void)deleteItemsAtIndexPaths:(NSArray *)indexPaths withItemAnimation:(SSCollectionViewItemAnimation)animation;
+        - (void)insertSections:(NSIndexSet *)sections withItemAnimation:(SSCollectionViewItemAnimation)animation;
+        - (void)deleteSections:(NSIndexSet *)sections withItemAnimation:(SSCollectionViewItemAnimation)animation;
+        - (void)moveSection:(NSInteger)section toSection:(NSInteger)newSection;
+
+### Version 0.1.0
+
+[Released September 18, 2011](https://github.com/samsoffes/sskeychain/tree/0.1.0)
+
+* Initial release