RS 1.4.5

** Enhancements

• Enhanced threading model for the SpiceManager and SpiceService. Decreased priority to increase UI Thread performance and
  enhance user experience.
• Add isDataInCache and getDateOfDataInCache to spiceManager. Thx to Onyx Mueller and Mathieu Castets for suggesting this feature.
• BitmapRequests, SimpleTextRequests have non final methods to allow developpers to extend them
• SpiceList APIs have been changed to allow multiple images per cell view in a list. Thx to Andrea Altobelli for submitting the feature.

** Bug fixes

• Cache folder creation is now thread safe.
• Correct bug of cache removal when there cache folder doesn't exist or is empty.
• SpiceArrayAdapter's getView method is not final any more to allow subclasses to customize adapters (adding sections for instance).
  Thanks to Christopher Parola for this suggestion.