Spanish language update

FS#1995, add a little defense to avoid warnings caused by bad wiki
syntax

No need for a self include ;)

Truncate wiki name in sent mail (FS#2021)

correctly handle highlighting of partial searches FS#1353

more relaxed recognition of windows share links FS#1991

FS#1928: Keep mlist file upon page deletion to persist subscribers for later recreation
and allow notification of subscribers of page deletion.

Brazilian Portuguese language update

FS#1353: Only highlight isolated occurences of search term, not those where it's part
of another term. Word boundaries are now respected.

Fixed bug FS2030 JpegMeta dies on parsing XMP

FS#2038: Use GET for the search form

renamed index to sitemap FS#2026

Informal German language update

a more correct fix for FS#2039

properly encode user wildcard in ACLs FS#2039

Add back globals for templates

Small fixes / cleanup

ignore wrong content-encoding header FS#2037

Some servers send a content-encoding for gzip files but do not encode
the content themselves. This is IMHO wrong, this patch detects this
and ignores the

ignore wrong content-encoding header FS#2037

Some servers send a content-encoding for gzip files but do not encode
the content themselves. This is IMHO wrong, this patch detects this
and ignores the header. The request will return true but set a
warning message in $this->error

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Slovak language update

Faroese language update

Action handler for sitemaps improved

The action handler for the sitemap now makes use of the sitemapper
methods for determining the filename and uses http conditional requests.

Sitemapper code improved and documentation added

Removed some calls to dbglog, improved the code performance and added
documentation for all functions and classes of the Sitemapper.

Restructured the sitemapper

Transformed the sitemapper into a class

This makes it possible to autoload the sitemapper when needed.

Sitemap rewrite