Localized App Inventor to Simplified & Traditional Chinese version

Change-Id: I8c501257f61760b4a09937050e51a5a629732e71
Fix MediaUtil to detect Out of Memory Error

Change-Id: Ie0e4a3b5e941bd2d5d69cfde59ee0eb44682b04f
Add Instructions to YaVersion.java for Internationalization

Added instructions to YaVersion.java on new version upgrade changes to
components that are required for internationalization

Change-Id: Iafed178de6dea5983d84888ec31a07a427053fed
Minor fixups to Chinese translations

Remove extra InsertRowMethods and make sure file ends with a newline.

Change-Id: Id0b776d2a759982ff8fa99b25be0874beaa346ac