Merge pull request #8 from petekrull/develop

+ Added Steps, TransactionLog and UserSteps
Added accessor functions to models; restructure NSS Sync service
+ refactored to break down sync process into policies
Merge branch 'develop' of https://github.com/appdevdesigns/nextsteps-sailsjs into develop
Merge branch 'develop' of github.com:chemo318/nextsteps-sailsjs into chemo318-develop

Conflicts:
	api/models/NSServerUser.js
	api/services/NSServerSync.js
Begin work on NSS Sync policy
Merge pull request #10 from chemo318/develop

Begin work on NSS Sync policy
Update Nodes and Steps with dummy GMA data; small fixes for some models
Merge pull request #11 from chemo318/develop

Update Nodes and Steps with dummy GMA data; small fixes for some models
Implemented ValidateUser and PrepareOutgoingData policies for sync service