Update Permissions for Internet and external Write.  Also added new
activities, Download and Unzip.
Update new strings.
Added a catch exception for play button for null (no files) and toast
message for that case.

Added intent to download activity for updating.

Added readclip.info to beginning of play button click because of refresh
needed after update to directory otherwise you get a null exception.

Also added mkdirs for files on onCreate.
New layout for download activity. Contains buttons for update.
New activity for downloading and updating and unziping.
New activity for unziping.