[Front-end] Created a utilities.js file for housing sanitizeService
[Front-end] Updated reference to sanitize service for HTTP service, modified it to include jp.utilities, removed excess code
[Front-end] Added a sanitize function for Activity.build
[Front-end] Modified the sample activity json factory
[Front-end] Compile Fix
[Front-end] Finished construction of ActivitySvc that has a getList that constructs dategrouplists which holds a dategroup which holds an array of activities.