adding rename-buildpack command to buildpack operations
incorporation code review comments
refactoring the code and some formatting
Switch candiedyaml location

candiedyaml is now part of cloudfoundry-incubator
Show error message from server on async job failure

[Finishes #65222140]
Improve argument checking in generate-release-notes script
Merge remote-tracking branch 'brah/rename_buildpack'
Cleanup buildpack api tests
Clean up rename buildpack tests

Also, when no buildpack exists with the given name,
fail, rather than succeeding with a warning.

[Finishes #68420284]
Merge pull request #131 from fraenkel/candiedyaml

Switch candiedyaml location

OH YEA
Remove subshell usage in upload-binaries script
Upload edge binaries even if master has new commits

[#68770780]
Refer to tip of master as HEAD

git parses HEAD as a special name, you can't always refer to it as head.