First pass at integrating giddyup_coverage into giddyup
Added coverage resource.
Added debug statements and broke up huge function.
Fixed bin/list expectations

This marks the first successful use giddyup_coverage.
Made the html generate test result focused.

This significantly reduces the amount of code.
Added linke to test_results coverage

Also better isolated test_result coverage so scorecard overall coverage
can be implemented later.
Fixed links in coverage html
Added ability to generate coverage for a platform's scorecard
Made platform header link to coverage info.
Added combined coverage off all platforms for a scorecard.
Removed duplicate code.
Check for existing coverage download.
Added documentation.
Moved sql to giddyup_sql
Added riak_lib_path to giddyup_config
Able to create coverage html using escript.
Added ability to upload to S3.

And thus the -d option is actually used.
Changed coverage for webmachine to get from s3.
Removed coverage script's dependance on direct sql access.

Added coverdata endpoints to the coverage resource to fetch the
s3 url's for the coverdata of a test result.
Updated help text.