V1.1.5: Add IGraphView, IViewHelper and ViewFactory. Fix object leaks.

Fix the usage of SVGKit.
Check coreView in ShapeRunnable.stopRecord.
Remove synchronized statements in regenAll, regenAppend and redraw.
Fix object leaks for Android.
Record shapes in regenAll() at first.
Add redraw(bool changed).
Check last bundle in onSaveInstanceState.
Add MgStringCallback to avoid char* pointer’s leak.
Replace GetTickCount() with SystemClock.elapsedRealtime().