- templates/user/settings: fix email panel nav highlight

Also, change all current 'emails' to 'e-mails'.
Still todo: some CSS for the user/settings/email page, but that is not my specialty

All basics are implemented. Missing are the right (localized) strings
and the page markup could have a look at by a frontend guy.

Signed-off-by: Unknwon <joe2010xtmf@163.com>

Conflicts:
	modules/setting/setting.go

Conflicts:
	templates/repo/release/list.tmpl
	templates/user/dashboard/dashboard.tmpl

Conflicts:
	routers/repo/setting.go