Bump version to 2.57.rc4
Bump version to 2.57.rc4
omridevk/mwEmbed,alexmilk/mwEmbed,omridevk/mwEmbed,kaltura/mwEmbed,FlixMaster/mwEmbed,FlixMaster/mwEmbed,alexmilk/mwEmbed,alexmilk/mwEmbed,alexmilk/mwEmbed,kaltura/mwEmbed,omridevk/mwEmbed,kaltura/mwEmbed,kaltura/mwEmbed,omridevk/mwEmbed,FlixMaster/mwEmbed,FlixMaster/mwEmbed