Meta tag support

[WyriHaximus]

Allow pages to set custom meta tags. The default is not to index anything but allow all links. Only pages with content should be indexed so a site doesn't pollute the search index and might be punished for it. The second thing I've added are feed tags for category and tag feeds added recently.

[simensen]

I like this. I've been doing this a lot myself. I've just been using block named meta. What do you think about that?

[WyriHaximus]

meta sounds good to me but the reason why I named it metaTags because it clarifies it's for meta tags and not other kinds of meta data.

[simensen]

OK. The things I've been doing is:

• meta (gets injected just before the local stylesheet is included)
• styles (gets injected just before </head>)
• script (gets injected just before </body>)

I'd love to come up w/ something that can be more consistent. I suppose we could do meta, style, script, or meta, styles, scripts?

I also think the idea of being more specific could be helpful. Maybe head_meta instead of metaTags? So head_meta, head_styles, scripts_after or something?

[WyriHaximus]

head_meta, head_styles, scripts_after makes perfect sense because it's clear where things are going to be. Want me to extend that into this PR and update it? I might even consider adding head_scripts that is injected right after head_styles for small snippets that aren't blocking the loading of the page.

[simensen]

Yep, that sounds good to me.

[simensen]

Read: yes, if you want to make those changes and add it to this PR, that would be awesome. You can either add commits or rebase / squash. I'm fine with either.

[WyriHaximus]

It will be only 1 other commit so not rebasing or squashing so the history is clear on why the changed happened.

[simensen]

I won't get a notification when you push new code so ping the issue manually when you're ready for me to take a look again! Thanks. :)

[WyriHaximus]

Will do :).

[WyriHaximus]

ping

[simensen]

Thanks!