Remove -phase from DAG-running

It doesn't need to be a separate argument. Fixes #5.

Dependency fix (minor)

Bump required version of List::AutoNumbered

Fixes cpantesters failures

Fix prereqs

Non-TRIAL release

Also, remove bin/hopen, which should have been removed long ago.

Links work

• An edge can have multiple links
• More tests and much higher test coverage!

v0.0.15

Bump version to 0.0000015

Fixed some tests

v0.0.14

Release of v0.000014-TRIAL

v0.0.13: Code and test updates

Code changes (in package order):
- Data::Hopen::hnew(): provide more accurate error messages.
- Data::Hopen::loadfrom(): no longer require a list of stems.
- Data::Hopen::G::DAG: pass the node inputs to visit_{node,goal}; change
  some exception text
- Data::Hopen::G::Entity: custom stringification for easier debugging
- Added Data::Hopen::G::NoOp

- !!! >>> Data::Hopen::Scope: when merging predecessor-node outputs
  into successor-node inputs, DO NOT CLONE.  This way blessed references
  can be successfully passed between nodes. <<< !!!

- Data::Hopen::Util::NameSet: Tweaked code so 100% coverage
  is achievable.
- Added Data::Hopen::Visitor
- Updated documentation

Test changes:
- Added t/lib/PackagesInThisFile, which is a crazy way of doing
  subtests, each in its own package.

WIP: a way to merge hashes, cloning non-blessed references but not
     references.

v0.0.12: Bump version to stable

No changes from v0.1.11-TRIAL.

v0.0.11: Added G::Goal::should_output; bugfix in Scope

Also:
- Removed unused deps
- Bumped version number to v0.0.11 TRIAL
- Removed some dependencies from Makefile.PL

First full CPAN release

Finished removing App::hopen code

Also, replaced Arrrgs, and direct uses of Getargs::Mixed, with new
Data::Hopen::getparameters().

Bumped version; first non-trial release.