bug #698 Add RewriteRule (jeremy.derusse)

This PR was merged into the 2.3 branch.

Discussion
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Add RewriteRule

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | should not
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | symfony/symfony#9295
| License       | MIT
| Doc PR        | NA

Actually, Apache does not sets "HTTP_AUTHORIZATION" on bearer authorizations. This PR applies Symfony's recommendations by using a .htaccess to rewrite this header.

http://symfony.com/doc/current/cookbook/configuration/web_server_configuration.html

Commits
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77ee2a8 Add RewriteRule

Author: fabpot

web/.htaccess

@@ -18,6 +18,10 @@ DirectoryIndex app.php
     RewriteCond %{REQUEST_URI}::$1 ^(/.+)/(.*)::\2$
     RewriteRule ^(.*) - [E=BASE:%1]
 
+    # Sets the HTTP_AUTHORIZATION header removed by apache
+    RewriteCond %{HTTP:Authorization} .
+    RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
+
     # Redirect to URI without front controller to prevent duplicate content
     # (with and without `/app.php`). Only do this redirect on the initial
     # rewrite by Apache and not on subsequent cycles. Otherwise we would get an