Registering datashapes, questions fails if done in 'wrong' order

[NiloCK]

More specifically, pairs of related shapes / questions registered in the wrong order don't have the correct data associated in their db entries, and side effects include:

• preview cards not being rendered during data entry
• entered data (which does make its way to the db) fails to spawn related cards in the db

Fix options (?):

• make Qs ineligible for registration if their datashapes are not already registered (probably best)
• do some 'back filling' of db data after the 'out of order' registrations
• fold the registration of these objects into one operation
• remove component registration altogether (registered by default)