Ember Data Change Tracker Versions Save

Performance testing #84 @averydev

• speed up init times #83 @averydev

-> #72 @richardfrosztega

• stop using evented to keep up with ember data 3.12 #65 #64 @mayatron
• this version has problems with ember-data 3.12 -> so try and avoid it

• update to Ember / Ember Data 3.8
• remove jquery usage
• switch to using ember-fetch in testing ( dummy adapter )

• updated to ember/ember-data 3.6 so change tracker now works with ember-data 3.5+

• update dependencies

fixes issue with new model on rollback #45

• adds method saveTrackerChanges
  • alias for saveChanges
  • adds a except option to save all changes except the attrs/relationships you don't want to save

Example:

let [company1, company2] = makeList('company', 2),
     user                 = make('user', {company: company1});

run(() => user.setProperties({info: newInfo, company: company2}));
user.saveTrackerChanges({except: ['company']});

user.savedTrackerValue('company'); // =>  {id: company1.id, type: 'company'}  has not been updated

• fixed dirty tracking for hasMany async false #36 @DavidPhilip
• redid tests to use nested modules ( much more readable tests )