Convert size values to correct unit. Refs #issue6.
Add default value to parameter. Refs issue #5.
Fix some warnings.
Open controllers to public access (in order to open app to non-admin users).
Fix day stat units.
Fix codechecker verif. Refs issue #8.
Replace call to (private api) OC_L10N by public api call. Refs issue #8.
Replace call to (private api) OC_User::getHome by public api calls. Refs issue #8.
Replace DB private api calls by public calls. Refs issue #8.
Allow api to return json or xml responses.
WIP: add admin settings section. Use angularjs.
WIP: all angular, better design
WIP: admin panel section OK
WIP: Test getting group list for a given user (big perf pb)
WIP: getting group stats.