Fix vevent location backcompat

[gRegorLove]

Includes whitespace fixes in ClassicMicroformatsTest.php View updates sans whitespace.

Fixes #184

[dshanske]

No issue here

[Zegnat]

According to the original issue #184 this tries to address two tests:

1. ✅ hcalendar/combining: this one now passes. No more extra children property. location is correctly added with a nested h-card.
2. ❌ hcalendar/attendees: this one does not pass yet. This PR now adds a location property, the test expect it to be the string San Francisco but the parser now makes it an h-card. If there is no vcard or adr class, none should be implied.

[gRegorLove]

The Travis failure now is on PHP 5.5 with masterminds/html5. Once #220 is resolved I can rebase on master and that should be good to go.

[tantek]

The updated functional edits LGTM.

Nit: were the indentation/whitespace changes in ClassicMicroformatsTest.php really necessary?

I'm not happy about them (so many that GitHub didn't even display them by default and I had to expand the diffs!) but it's also not blocking. I'd prefer if those could be reverted so I'm marking this "Request changes". If there was a good reason to mix that into this commit, please comment accordingly and I'll approve.

[gRegorLove]

The .editorconfig introduced a little bit ago specifies tabs so I think my editor did that automatically.

Adding ?w=1 to the URL removes the whitespace changes for reviewing: https://github.com/microformats/php-mf2/pull/201/files?w=1

[Zegnat]

I have rerun the tests with the new testing in place on master.

composer run phpunit -- --group microformats/tests/mf1

With this PR merged (like before), we are now able to pass the hcalendar/combining test.

But also like before, this still does not fix hcalendar/attendees:

Mf2\Parser\Test\MicroformatsTestSuiteTest::testMf1FromTestSuite with data set "hcalendar/attendees" ('<meta charset="utf-8">\n<div c.../div>\n', '{\n    "items": [{\n        "ty...: {}\n}', 'hcalendar/attendees')
Failed asserting that two arrays are equal.
--- Expected
+++ Actual
@@ @@
 Array (
     'items' => Array (
         0 => Array (
             'properties' => Array (
-                'attendee' => Array (...)
                 'location' => Array (...)
                 'name' => Array (...)
                 'start' => Array (...)
             )
             'type' => Array (...)
+            'children' => Array (...)
         )
     )
     'rel-urls' => Array ()
     'rels' => Array ()
 )

This PR does not introduce any new test breaks, so it looks good to me for merge. But we need to decide whether we want the hcalendar/attendees test to pass or not.

Would be nice to get this branch rebased on master so it is easier to run tests.