Fixed whitespace.
New hidden section for notifications preferences.
Formatted.
Implemented drop down to set email sending frequency.
Merge branch 'master' into notificationsPrefs

Conflicts:
	orcid-web/src/main/webapp/static/javascript/angularOrcid.js
Fixed merge problem.
Added reminder of primary email address in notifications preferences
section.
Formatted.
Added option for receiving notifications about new ORCID features.
Fixed typo.
Set default values for notification preferences.
Merge branch 'master' into notificationsPrefs
Merge pull request #1534 from ORCID/notificationsPrefs

Notifications prefs