Tiny tweaks

All part of the learning process.
Config tweaks, based on activator template

play-mongo-knockout
Fixed play2 ReactiveMongo dependencies.
Added initial Santa REST API

Limited functionality, successfully queries MongoDB.
Generate SecretSanta path: First Actor Impl
First draft: new actor-based solution

Use fewer actors to handle graph traversal.
Directory restructuring
Fixes for path changes
Secret Santa: implemente recursive algorithm
Read graph from DB
Return 1 randomly selected path
Update DB with generated sequence.
Added Profile Controller
Added API for adding members to event

With minor front-end tweaks.
Added declique API
Read request body when creating new ssanta.
Implemented create santa API
Fixed tests
Optimised santa solver for 1 solution.

Only return one solution, if it exists.
Traversal is randomised.
Explore method made tail-recursive.
Enabled AngularJS