File naming conventions.
Removing unused image.
Merge pull request #254 from nigelgbanks/7.x-filename-conventions

7.x filename conventions
some datastreams were downloading into
files without extensions
Updated for changed config value.
Merge pull request #256 from nigelgbanks/7.x-default-test-config

Updated for changed config value.
Merge pull request #255 from willtp87/7.x

some datastreams were downloading into
Merge branch '7.x' of https://github.com/Islandora/islandora into 7.x