Rename setJsonObjectBody to setJsonPojoBody.

Lots of people were passing in strange things... like String, JSONObject, etc.

Conflicts:
	ion/test/src/com/koushikdutta/ion/test/GsonTests.java
Test for issue 329.

Fixed with:
https://github.com/koush/AndroidAsync/commit/00d1f567597af6e141c6788da281e32962103570
ImageView recycling bug: fix issue 315

https://github.com/koush/ion/issues/315
lock gson to 2.3
Merge branch 'master' of https://github.com/koush/ion

# By Koushik Dutta
# Via Koushik Dutta
* 'master' of https://github.com/koush/ion:
  lock gson to 2.3
  ImageView recycling bug: fix issue 315
  Test for issue 329.
  Rename setJsonObjectBody to setJsonPojoBody.