Added "show_label" parameter description
Fix hook navbar link
	modifié:         en/documentation/modules/hooks/hook_create.md
	modifié:         en/documentation/modules/hooks/hooks_list.md
	modifié:         en/documentation/modules/hooks/index.md
Add hook registering
	modifié:         _config.yml
	nouveau fichier: en/documentation/modules/hooks/hook_create_own.md
Add hook list anchor
	modifié:         en/documentation/modules/hooks/hooks_list.md
Merge pull request #74 from lovenunu/hooks

Add hooks registering
Added sale loop documentation
Added module_id parameter
Fixed background_color description
Fixed 'product' parameter doc, added $PRODUCT_ID output
Added sale loop documentation
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