improve #to_s for upload/download errors
Fix Java buildpack pointer
Revert "fix typo and update specs for logging"

This reverts commit f078d29a43833201f488248641cefd17a0e3197c.
Revert "decommafy"

This reverts commit 62aeff60ab3b077f4e327e757ce8715a019b7b5f.
Revert "switch all logging over to 'topic' style"

This reverts commit e26e94f00de333d177f76f76f8112bf0911cabea.
Revert "improve #to_s for upload/download errors"

This reverts commit 3ddefb0893f7158d0436c33cab6f6a2aecb582a1.