Release v0.1

Story

• [GECO-3] - Cepheus needs to extract images from pdfs
• [GECO-4] - Initial implementation of Cassiopeia
• [GECO-10] - Switch Nepomuk to ObjectDB
• [GECO-11] - Switch Giles to ObjectDB
• [GECO-14] - Giles needs to allow admins to generate new signing secrets
• [GECO-15] - Social signins need to be updatable from giles

Task

• [GECO-12] - Fix REST upload in Giles
• [GECO-13] - Nepomuk/Cepheus/Cassiopeia needs configuration page