Fixup Bitmap transform resize bug

Change-Id: Ie64a90272271d946ab702f5589fe433f8ce496fa
Use single executor service for Ion bitmap loading if not multiproc.

Change-Id: I77942f18d66b0753c6044fd1ec37c3aa862695ff
Fix bug in resize calculation.

Change-Id: I82b6013f3acae426dd50538ee3cb7b70e3301a03
wip: allow bitmap decodes to cancel if no longer needed

Change-Id: I996450136d408e7e56b6dc685c122f724c4cd1cc
add similar bitmap load cancels for transforms

Change-Id: I731c220e234d1ac3f6adfaead1d7358cd5b15664
Properly cancel load bitmaps requested via transforms

Change-Id: I1913fdabf48172e7db24bd1362739f722a0b8fb0
remove erroneous assert

Change-Id: If57b0bd8bb56e66e81a7d809fe60f2487ba1e3ab
fixed minor bug in GSON example which was causing an IDE error on cut/paste
Merge pull request #64 from gmale/readmeFix

fixed minor bug in GSON example
Fix bug where ImageView load errors do not provide
an exception

Change-Id: I66de1bdb946f92770f3ffe367408f949e7160d38
Merge branch 'master' of https://github.com/koush/ion

# By Koushik Dutta (8) and Kevin Gorham (1)
# Via Koushik Dutta
* 'master' of https://github.com/koush/ion:
  Fix bug where ImageView load errors do not provide an exception
  fixed minor bug in GSON example which was causing an IDE error on cut/paste
  remove erroneous assert
  Properly cancel load bitmaps requested via transforms
  add similar bitmap load cancels for transforms
  wip: allow bitmap decodes to cancel if no longer needed
  Fix bug in resize calculation.
  Use single executor service for Ion bitmap loading if not multiproc.
  Fixup Bitmap transform resize bug