New and modified scenarios in Funder and Member features

New necessary scenarios in Funder ("list existing funder", "duplicate
funder web") and Member ("login with nonexisting username", "new member
with facebook account", "register member with invalid email") and
modified scenarios in Member ("register user with invalid info", "new
member with invalid phone", "register user with long username").
Merge remote-tracking branch 'remotes/origin/cscbb'