Merge branch 'release/2.5.2' into develop
Ensure extra charge is added for international signed for
Bump version number
Merge branch 'release/2.5.3'
fixed: if no config is saved "small" parcel size is shown as default, so it's better to check for a medium package, else return small. Otherwise users
who have upgraded from an earlier version will be shown "small" package size in the admin panel, yet the code will choose "medium". Alternatively it could have checked for an empty config value
Merge remote-tracking branch 'upstream/master' into seedsman
Merge branch 'fix_default_size' into seedsman