Remove Handler usage from AndroidAsync.

This belongs in a higher level library, like ion.

Change-Id: Ia5a73d7d3f6165a9868b0720265ad08f6cf8c00b
Performance fixes around bitmap load cancellations.

Previous implementation was scorching LoadBitmap from the pending map even if it is in progress.
Losing that history caused more than MAX_IMAGEVIEW_LOAD concurrent downloads.

Change-Id: I819de8218bdb617c3f07ccdccd5b34b142387447
deepzoom sample
cleanup deepzoom sample
Actually enable deepZoom on the sample...
Only allow deepZoom for API level >= 10.

Change-Id: I5f1048c3784ca43196cd2ba18313e53531b75ab7
v122

Change-Id: I88dc4fe527bdad896057c0d466d948585e3f68ca
124

Change-Id: Ieca23bd5d32c3583320d5d26552cef280dba42f5