Add exclude file list to make dex task happy. Avoid repeating api level requirements in Manifest when declared in build.gradle.
Upgrade to latest zxing android intent integration helpers
Upgrade to latest version of volley
Use volley for fetching images
Use volley for fetching product information
Documentation changes, guard against null code (data error)
Use volley for modify product requests. Remove Jackson and Robospice dependencies. Introduce GSON dependency.
Wrap views with scrollview for small screens. Extract strings.