add autoload cookbook article
fix missing quotes and add a short introdution
fixes after feedback from aschempp
had the same error twice... see line 29
row length
add some explanations about the contao autoloader
Moved into language folder
Improved intro about the Contao class loader
Merge branch 'autoload' into 3.1
Merge branch '3.1' into 3.2
Merge remote-tracking branch 'upstream/3.2' into 3.2.
Merge branch '3.2' into 3.2-ja.
Renamed german cookbook document to german name
Moved custom module example to the cookbook section
Merge branch '2.11' into 3.0
Merge branch '3.0' into 3.1
Merge branch '3.1' into 3.2
Updated readme to explain relative paths for images
Updated german manual to use relative links for images
Updated english manual to use relative links for images