Update status for Vanguard

The New York Times article says Vanguard has committed to adding 2FA by the end of 2014.
Added Transakt
Update link for Vanguard
Update Travis Ruby version
Explicitly mention install command
Remove Gemfile.lock
Merge pull request #681 from jdavis/fix-travis

Fix failing of Travis
Merge pull request #672 from russelldavis/patch-1

Update status for Vanguard
Update education.yml
Merge pull request #683 from dsoegijono/patch

Add Academic Earth, Edmodo, edX to Education
Update Email
Paypal exceptions update in payments.yml
Merge pull request #686 from mxxcon/Paypal

Paypal exceptions update in payments.yml

Closes #685
Added AeroFS
Merge pull request #687 from zarvox/master

Added AeroFS
Remove MailChimp
Merge pull request #684 from dsoegijono/patch-2

Update Email
Merge pull request #680 from Carlgo11/patch-6

Added Transakt
Add Betterment to Investing

Also optimized transakt.png
Merge pull request #690 from dsoegijono/patch-1

Add Betterment to Investing