Add comment count in mobile

[sli1989]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines.
• Tests for the changes have been added (for bug fixes / features).
  • Muse | Mist have been tested.
  • Pisces | Gemini have been tested.
• Docs have been added / updated (for bug fixes / features).

PR Type

What kind of change does this PR introduce?

• Bugfix.
• Feature.
• Code style update (formatting, local variables).
• Refactoring (no functional changes, no api changes).
• Build related changes.
• CI related changes.
• Documentation content changes.
• Other... Please describe:

What is the current behavior?

The comment count in mobile doesn't display. It's a necessary meta, so display it without a enable option.

Issue Number(s): #180

What is the new behavior?

Add the count meta in post.

• Screens with this changes:

before

after

• Link to demo site with this changes: http://test.saili.science/2018/03/17/hello-world/

How to use?

In NexT _config.yml:

...

Does this PR introduce a breaking change?

• Yes.
• No.

[ivan-nginx]

Other schemes?

[LEAFERx]

recommend to add switch in _config.yml post meta

[ivan-nginx]

I still can't understand why it was added to disabled by default? Trafic economy or what? What's the reason?

[LEAFERx]

dont know either

[sli1989]

All tested. The screenshots are added.

[sli1989]

recommend to add switch in _config.yml post meta

I think it's a necessary meta.

[ivan-nginx]

Comments system? All tested? Again: need to try why it was added to disabled by default?
If all fine, that's good. But if not? Need to test it carefully. I don't think what it was maded by Vi simply for trafic economy or something like that.

---

Here is history, but i still no found any arguments on this addition (hide in mobile).

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Ok, test it on other possible popular comments system and i think we can merge it. Strange situation.

[sli1989]

OK, more comment systems would be tested.

[sli1989]

Gitment comment system works fine. The comment count display with Disqus in homepage but not in post page. Check this demo.

[ivan-nginx]

Disqus appear not instantly at most time and for now i see comments count in homepage and in post page too. So, i think it's fine.

[sli1989]

OK, I doesn't use disqus. It seems all fine.