Rename REST -> S3
Squashed 'core/' changes from 8262f2c..1e82ea4

1e82ea4 Clear semantic of TM.test()
16c88ce Adjust Exceptions
fa40d5a Potentially fix path issue under Windows #107
1825f5d Attempting to resolve #103
ecd9d4a Add logging to odd M behavior

git-subtree-dir: core
git-subtree-split: 1e82ea476057c64173f844ab53b6defd26d2c7c6
Merge commit '87f72814bc5d414bc7dbf711797d613e470ff4b9' into develop
Make S3 plugin work with new plugin interface