Show user picture in users list.

SDUX-39
Lodash dependency

Added lodash as a dependency in the main module.
Settings service improvement

Settings service rewritten.
Users plugin updated to use new settings service.
Users settings checkboxes updated to use sdCheck.
Settings service improvement

Cleanup of test code.
Initial grunt requirejs task to compile the app.
Save user picture on popup save button click.

SDUX-39
Merge remote-tracking branch 'ozan/lodash-dependency'
Fix jshint errors.
Merge remote-tracking branch 'ozan/settings-service-improvement'
State service

Added a state service to handle application state.
Updated sdPagination and sdSort directives to use state service.
State service

Removed old code from users list controller.
State service

Changed settings and state service initialization.
State service

Fixed comments for settings and state service initializations.
Merge remote-tracking branch 'ozan/state-service'
User list checkboxes

Added custom checkboxes to user list.

SDUX-5
User list checkboxes

Fixed minor issues with checkboxes.

SDUX-5
Merge remote-tracking branch 'petr/master'
Users list delete

Modified server.js for delete functions.
Implemented single and multiple user delete feature.

SDUX-5
Server alternative

Core, list, read and delete functions completed.

SDUX-42
Server alternative

Completed server service.

SDUX-42