stub 'mail' module, radius-admin dependencies
mail: stub directory structure
mail: stub menu item(s)
mail: smtp config form
mail/smtp.html.erb: fix starttls param
stub smtp config library
mail: r/w smtp config
radius-admin: fix doc on User#find_attribute
radius-admin: user: view: Login-Time
radius-admin: User: *-Password: use Sequel.like
radius-admin: user: form: Login-Time: show value
radius-admin: view: vLogin-Time: fix nil error
Merge branch 'master' into aaa
radius-admin: group: view: Login-Time check attr.
Merge branch 'aaa' of https://github.com/gderosa/onboard into aaa
radius-admin: fix radgroupcheck operators
radius-admin: fix doc for Group#find_attribute
radius-admin: Fall-Through in radreply

Not radgroupreply.
radius-admin: user: fix '(no password)'
radius-admin: Login-Time: view: some help