Safe v1.1.0

Bug Fixes

• safe target no longer cares if your current target is valid
  before overwriting it.

Breaking Changes

These are things that should have been done in 1.0.0 to maintain
backward compatibility with older versions of safe`s export calls.

• safe export will now make a v1-style export if it is able to.
  These can be imported by older versions of safe.
• safe export's --shallow and --only-alive flags are now the
  default behaviors. They can be flipped with the new --all and --deleted
  flags, respectively.