create http cache doc
change numPage parameter in theliaLoop by limit
Correct menu title "Program you Form"
	modifié:         _config.yml
Correct missing e in "typ"
Link to propel documentation for the schema.xml
Thelia changed it's licence from GPL to LGPL
	modifié:         index.md
Fix typo wan't to want
	modifié:         en/documentation/contribute.md
rename install directory to setup directory
Fix variable usage in smarty
	modifié:         en/documentation/form/template.md
added tips for installation and configuration
updated version to 2.0.2
Added brand related documentation.
Added brand substitutions
Added the standardized form field generation description
Added loop specific output parameters
Added some doc on loops
Fixed incomplete loop documentations
added missing substitutions
Added coupon loop documentation
Update product_sale_elements.md

Added $IS_DEFAULT, $REF