Don't exclude files in /misc

Right now the *pages* in /misc are included anyway but not the other
files in the same folder, like CSS.

For example, this page is live but half broken right now:

https://tails.boum.org/misc/unsafe_browser_warning/

ikiwiki-cgi.setup

@@ -112,7 +112,7 @@ ENV: {}
 # regexp of normally excluded files to include
 # include: '^\.htaccess$'
 # regexp of files that should be skipped
-exclude: '(\/discussion\..*|\/Discussion\..*|^misc\/.*|\.(ar|ca|id|pl|ru|sr_Latn|tr|zh|zh_TW)\.po$)'
+exclude: '(\/discussion\..*|\/Discussion\..*|\.(ar|ca|id|pl|ru|sr_Latn|tr|zh|zh_TW)\.po$)'
 # specifies the characters that are allowed in source filenames
 wiki_file_chars: '-[:alnum:]+/._~'
 # allow symlinks in the path leading to the srcdir (potentially insecure)