Replaced MemberRetrieveSerializer by ProfileRetrieveSerializer

Gijs Hendriksen
2018-12-05T20:39:02+01:00

Replaced the `MemberRetrieveSerializer` by `ProfileRetrieveSerializer` for consistency with the `ProfileEditSerializer`. It now also makes the distinction between a profile you can edit (either it is your own, or you have special permissions) and other profiles. Less information is displayed for these other profiles.