Inject 'Test::Synopsis' as a develop dependency

Inject 'Test::Synopsis as a 'develop' dependency into the dist.
Thus, users of the plugin will have 'Test::Synopsis' listed in
"dzil listdeps --develop".

Note that this patch breaks Test::Pod::Coverage. The dzil plugin should
be disabled for this distribution.

Next step: make Test::Synopsis mandatory in the test code.

This can avoid strange bugs where the test is skipped because of a user
installation issue. Instead, if the plugin is referenced in dist.ini we
want to enforce that the test runs and succeed.
Here is an example of the kind of bugs that can happen:
   https://github.com/rjbs/Dist-Zilla/issues/283
Generated test code now uses Test::Synopsis without guard

This is a release test. It should not be silently skipped for obscure
reasons (such as Test::Synopsis not being installed).
So the test will now fail if Test::Synopsis is missing. The developer
that may be victim of this has no excuse because Test::Synopsis is in
"dzil listdeps --author" (see previous commit).
dist.ini: add [Boostrap::lib]

To ensure that we will make the release of this distribution using our
code in lib/ (not a previously installed release).
dist.ini: disable [PodCoverageTests]

This is implemented using [@Filter] because [@Author::DOHERTY] does not
yet implement PluginRemover (see
https://github.com/doherty/Dist-Zilla-PluginBundle-Author-DOHERTY/issues/6
).
Add myself (DOLMEN) as co-author
Add Changes entry for dolmen's work
Released 2.000005