Do not check for eTag when the header is empty
- Adding listener and place holder view support for methods that
download images in background
- Fixing a bug when downloading images with CacheManager
Missing Java Doc
Merge pull request #34 from appglu/development

Development
Updating Java Docs
Adding support for executing serial AsyncTasks even on Android versions
below HONEYCOMB. For that I am adding a copy of ICS AsyncTask source
code and using it for versions below HONEYCOMB.
Avoiding exception when using a null file name with
FileSystemCacheManager
Merge pull request #35 from appglu/development

Development
Changing the ImageViewAsyncCallback to receive a View instead of a
ProgressBar since a user could want to use another view as place holder
while loading an image
Merge pull request #36 from appglu/development

Development
Sync events can be sticky or not, depending on the method used to
register the listener
Merge pull request #37 from appglu/development

Sync events can be sticky or not, depending on the method used to
Adding support for calculating inSampleSize using a requested width and
height when downloading Bitmaps in StorageApi
Merge branch 'master' of https://github.com/appglu/appglu-androidsdk.git into development
Merge pull request #38 from appglu/development

Development
Adding wasSuccessful to onFinish method
Merge pull request #39 from appglu/development

Adding wasSuccessful to onFinish method
Adding wasSuccessful to SyncEventListener as well
Merge pull request #40 from appglu/development

Adding wasSuccessful to SyncEventListener as well
Inverting order of wasSuccessful