Fix #636

- 4 spaces indentation
- Indent on HTML tags AND on TT2 stuff ([% IF … %])
- Avoid HTML or TT2 oneliners like:
```
  [% IF top_menu %]…[% END %]
  <div class="displayNone"><a href="#top">Top of Page</a></div>
```
- When a tag has too many attributes to be on one line, indent the
  attributes at the same level than the first one:
```
<label class="foo"
       id="bar">
    Baz
</label>
```

It was gone years ago.

cf. https://foundation.zurb.com/sites/docs/responsive-navigation.html#preventing-fouc

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[-bug] If javascript is disabled, loading notice and spinner image are always shown.  Fixed by rendering notice and image using javascript.


git-svn-id: https://subversion.renater.fr/sympa/branches/sympa-6.2-branch@12816 05aa8bb8-cd2b-0410-b1d7-8918dfa770ce

[bug] If the list name contains "+", incorrect web links are generated in service messages and web interface.
Fixed by encoding special characters using new "url_abs" and "url_rel" template
filters.


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[bug][#8570] [Reported by A. Epstein, Cornell Univ.] <base> element in web output should be eliminated, because it will mess reverse proxy and so on.  Fixed by making partial URIs to be redirected to base URI.


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[-dev] Ephemeral notices are not always shown at forefront: They are hidden by tiles on home page.  Fixed by moving inclusion of notice.tt2 after ${action}.tt2.


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[-bug] When CSS is disabled, "Please wait..." notice is always shown.  Fixed by adding the notice using CSS content attribute.
Additionally, now the notice is wrapped by <div> instead of <h1> not to break document outline.


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[change][Submitted by O. Lumineau, RENATER] Improved web skin with responsive design and several skins bug fixes. You'll note that the Sympa top menu is back. For those of you who preferred the original Massey side menu, you can switch the menu position by simply editing the main.tt2 template. At the beginning, you'll see this: [% top_menu = 1 %]. Simply set this variable value to 0 and the menu will go back on the side and clear up the top window area.

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[-change][-bug] Use font-awesome icon and fix responsive script, update said script to use jquery (TODO : move in sympa.js)


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[bug] WWSympa: When TT2 parse error occurs and tt2_error.tt2 has error again, no content is sent and HTTP server will report error status (e.g. 503 with nginx).
To prevent such situation, wrap PROCESS directives in this template with TRY...CATCH.  The same measure is taken for crash.tt2.


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- sympa_wizard.pl.in is placed in sbindir to keep compatibility with 6.1.
- aliaswrapper.c and virtualwrapper.c are no longer built.
- sympa_newaliases.pl.in and sympa_newaliases-wrapper.c are added in sbindir and libexecdir.


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- ldap_export_XX
- tri & sort
- htmlarea_url (no longer supported.  Use html_editor_XX)


git-svn-id: https://subversion.renater.fr/sympa/branches/sympa-6.2-branch@9013 05aa8bb8-cd2b-0410-b1d7-8918dfa770ce

[dev] Canonicalize incoming language codes with format of language tags: Old-style codes in config files, session cache etc. would be intact but interpreted to new codes.


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