Ensure bundle install runs in a reasonable time
Remove --repl flag, refs #50.

This feature was problematic for users attempting to use either pry or
guard with their cookbooks due to the pry version constraint necessary.
FC046: Attribute uses assign unless nil, refs #52.
FC024: Refer to metadata, refs #59.

Introduce new #supported_platforms api method.
FC034: Update regression test expected output.