Merge remote-tracking branch 'origin/master'

Conflicts:
	src/com/androidquery/callback/AbstractAjaxCallback.java
Updated version.
Dev merge.
Merge branch 'dev'

Conflicts:
	dist/build-full.jardesc
	src/com/androidquery/AbstractAQuery.java
	src/com/androidquery/callback/AbstractAjaxCallback.java
Merge branch 'dev'

Conflicts:
	dist/build-full.jardesc
	dist/build.jardesc
	src/com/androidquery/util/Constants.java
Merge remote-tracking branch 'origin/dev'

Conflicts:
	dist/build-full.jardesc
	src/com/androidquery/callback/AbstractAjaxCallback.java
	src/com/androidquery/util/Constants.java
Add isDebug method.
Add retry support.
Fix bug where progress bar is not set to hidden for image ajax within
list view.
Update version.
Merge branch 'dev'

Conflicts:
	dist/build-full.jardesc
	dist/build.jardesc
Merge branch 'master' into dev
Update build file.
Fixed aq.ajax overwite callback params.
Fix test case image url path.
Update version.