Updated CSS to fit newer versions
Minor tweakings
validate opml
remove screenshots
fix font family for button
fix .po comments
fix favicon.ico + plugin init
fix curl header
fix unknow error
fix error management
fix add feed + translation message
fix fr_FR typo
fix CS + fix empty shaarli link
code refactoring
check lang validity
cache css, js, test base url
Explicit error + refactoring
add cache for favicon, style and script
remove header_remove for PHP compatibility
default force for update
improve list items generation