Don't duplicate site title in home page TITLE tag (#78)
Let's say your `.Site.Title` is "My Website". The code grabs `.Site.Title`, and then then checks to see if there's a `.Title`. When you're on the homepage, `.Title` is equivalent to `.Site.Title`, so that the browser bar will read:
> My Website | My Website
If we qualify `.Title` by confining to the `.Params` namespace, then the site title isn't duplicated:
```<title>{{ block "title" . }}{{ .Site.Title }} {{ with .Params.Title }} | {{ . }}{{ end }}{{ end }}</title>```
> My Website
But it still picks up `.Title` from posts and pages, where a content title exists in front matter:
> My Website | About Me
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| | | <meta charset="utf-8"> |
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| | | <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> |
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| | | {{/* NOTE: the Site's title, and if there is a page title, that is set too */}} |
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| | | <title>{{ block "title" . }}{{ .Site.Title }} {{ with .Title }} | {{ . }}{{ end }}{{ end }}</title> |
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| | | <title>{{ block "title" . }}{{ .Site.Title }} {{ with .Params.Title }} | {{ . }}{{ end }}{{ end }}</title> |
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| | | <meta name="HandheldFriendly" content="True"> |
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| | | <meta name="MobileOptimized" content="320"> |
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