Add email_spec for testing emails
Add webmock
Capsule signups should be pre-confirmed
generate password reset token for auto-signed-up users
resolves #91
bcc members@theodi.org on welcome mails
Merge branch 'refs/heads/master' into feature-improve-email-on-create
Add mailcatcher support for development purposes
Improve email subject lines
Fix session path generation. Resolves #90

By renaming to member_session but retaining path. This keeps devise happy.
Add mailcatcher to readme
Don't need webmock right now

Would be good to remove the online dependency later, but not right now.
Fix punctuation in email
Add note about needing membership number to log in
Remove 'drop me a line' for higher-level members - they already know.
Highlight the membership number.
Improve sign in title
Link main logo to ODI site
Address email to contact name, or "member" if not available.
Fix failing test (account for strong tag around membership number)