Add configs for BlackBerry App World files (.bbaw)

Ensure that `.bbaw` text¹ files will:

 * be served with the `application/x-bb-appworld` media type
 * have their character encoding specified as `UTF-8`
 * not be served with any of the `HTML` document related headers
 * not be compressed (since they only contain a number¹, the
   application ID, compressing them will only make the file size
   bigger)

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¹ From: http://docs.blackberry.com/en/developers/deliverables/18168/BlackBerry_Browser-Feature_and_Technical_Overview--1214041-0804111258-001-6.0-US.pdf:

  `.bbaw` - "A text file that contains the application ID for an
             application found in the BlackBerry App World™ storefront."

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Ref: h5bp/server-configs-apache#43