v3.1.6

• fixed : [image] replace "Use the current post thumbnail" by "Use the contextual post thumbnail". fixes #843
• added : [post grid module][developers] add a filter to set a custom default featured image. fixes #844
• fixed : [post grid module][performance] object cache => caching post queries should take pagination into account. fixes #845
• fixed : [button] style of :focus state is broken when button is a link. fixes #846
• fixed : [menu module] search field should not inherit the menu text color
• fixed : [template and sections][api] when a problem has occurred while getting a remote template or section make sure the transient data are not set