singular names for mutation categories.
ui tweaks.
namespace mutations within respective models.
Source::Update specs.
Source::Destroy and Source factory.
project creator mutation.
Project::Update (untested).
specs for Project::Update.
Project::Destroy mutations.
mutations refactoring.
different inputs for mutations (sample, in User::Update).
refactored user mutations.
refactored source mutations.
refactored existing mutations.
note mutations.
Note::Create mutation.
integrating Notes mutations wth controllers.
fixed notes mutation/controller integration.
take model object IDs as strings instead of BSON::ObjectIds.
integrating mutations into controllers.