GitLab

* refactor: move environment-based command restrictions to be stored with the command itself

* Staticcheck fixes

This fixes all staticcheck warnings for this library.

* remove ErrNotFound - it isn't used. If we want to type not-found errors, we
  should consider adding a new error "subtype" field. All the current errors are
  effectively transport-level errors.
* remove ErrFatal - it's unclear how this should be handled.
* add ErrRateLimited - requested by @MichaelMure
* add ErrForbidden

CloseNotifier has been deprecated for a while.

Also, ditch the "environment" context. We don't actually _need_ this.

- always return command errors in Next, neven in Send
- also check trailer when receiving EOF
- update tests to reflect changes

avoids a nil pointer dereference

fixes ipfs/go-ipfs#4998

fixes #45

this way we can share the code with the legace commands package and don't have to convert everything

License: MIT
Signed-off-by: Jeromy <why@ipfs.io>

License: MIT
Signed-off-by: rht <rhtbot@gmail.com>

License: MIT
Signed-off-by: rht <rhtbot@gmail.com>

- Modified Godeps/Godeps.json by hand
- [TEST] Updated welcome docs hash to sharness
- [TEST] Updated contact doc
- [TEST] disabled breaking test (t0080-repo refs local)