Remove dependency_links...

Remove `dependency_links` since they cause issues with recent versions
of `pip`, which require the specification of [`allow-external` and
`allow-unverified`][1] for install to work properly for this package.
In an effort to simplify things for the time-being, we simply list the
dependencies and assume that they are installed, or available through
PyPi.

[1]: https://github.com/pypa/pip/issues/1423
Remove deprecated file.
Revise docs in DmfDeviceController.save_dmf_device
Fix #133.  Update device name on save-as/rename

Update device name when performing `Device > Save As` or `Device >
Rename`.  Note that the prior to this commit, the underlying device was
actually being updated in both the `Save As` and `Rename` scenarios, but
the name change was simply not being reflected in the GUI.
Merge branch 'ticket_133' into dev
Add script to generate Markdown latest URLs page

Usage:

    python -m microdrop.bin.latest_versions

To generate HTML page:

    python -m microdrop.bin.latest_versions | markdown > index.html

See #148.