ability to change item margin from XML
fix issue when recreating StaggeredGridView after the activity has been cleared from memory and created again
Merge pull request #30 from BenoitDuffez/master

Fix a bug and add an improvement
fix crash
fix crash
set item count on setAdapter, without this widget doesn't layout on setAdapter
Fix issue that stopped view from scrolling to the top when a spanned item was the first in view
Stopped CheckForTap from laying out all children from the adapter
Move span check under child null break
Merge pull request #32 from BenoitDuffez/master

Fix crashes and code compilation
merge conflict
merge conflict
merge conflict
Cleaned up merge and put in possible fix for reading parcel in SavedState(Parcel in)
* fixed: restore from Parcel incorrectly.
Merge pull request #37 from aarya123/patch-1

Cleaned merge and possible fix for SavedState(Parcel in)
merged pull request
* fixed: typo, which cause 'The method createntArray() is undefined for the type Parcel'
Merge pull request #39 from zouguangxian/master

Error: The method createntArray() is undefined for the type Parcel
update Android SDK to 4.2.2