Add nice error message with links to skip sql functions update

See merge request !150

Release.rst: fix typo
Sitemap.rst: new created to be included by Index.rst.

Reformat Index.rst according...

See merge request !149

Reformat Index.rst according https://github.com/TYPO3-Documentation/TYPO3CMS-Example-ExtensionManual.git

# Conflicts:
#	doc/T3_DOC.md

Newdoc

See merge request !148

Newdoc: docs.typo3.org seesm to fetch only the master branch - we need to merge to bring the doc online

See merge request !147

Update ReST Syntax URLs. Remove 'extension/Documentation.outdated'. Update .gitignore to not commit rendered doc.

# Conflicts:
#	Makefile

# Conflicts:
#	Makefile

update SQL functions error

See merge request !146