MyCyma

[evol] language can be forced in the user admin page (closes #6) (no user interface yet)

[fix] check artwork properties/subobjects better before displaying

[evol] an artwork can have multiple materials

[fix] renamed 'technique' into more appropriate name 'artwork_support', and update schema and translations (Closes #4)

[evol] add complete user management interface #2

[evol] add complete user management interface

[fix] improve password validation #2

[fix] improve password validation

[evol] redirect to home page after logout, instead of login page

[fix/evol] forgot new files in the previous commits and check admin status to access user management