Tests and fixes center service.  They work from front to back.
Reviewing some of the views, prepping to implement charts.
Merge pull request #92 from jacob-israel-turner/master

Tests and fixes center service.  They work from front to back.
Merge pull request #94 from bloodhawk/master

adds filtering on reports via lodash for all centers by time-range
Begins using angular-charts. Will now proceed to delete angular-charts and
use angularjs-nvd3-directives.
Switching to angularjs-nvd3-directives.
Merge pull request #95 from jacob-israel-turner/master

cleans up index.html, changing the charts library a couple of times.
adds bcrypt support for passwords, increases string size to support hash