am 03345389: Merge "Delete everything from the shareables/ directory to save space on dac. All of the training ZIPs are now located in development/samples/training/zips/ Added a readme file to explain this change toward using cloud storage instead." into jb-dev
* commit '0334538983ee7031bf06c4961ce6185e099ef655':
Delete everything from the shareables/ directory to save space on dac. All of the training ZIPs are now located in development/samples/training/zips/ Added a readme file to explain this change toward using cloud storage instead.