replace tripadvisor with travelzoo on homepage
use gray logos on pricing page, remove tripadvisor, add travelzoo
fix redirect for create account dialog and make helper functions for parse response and testing/redirect logic
QA updates to the pricing page.
don't redirect for automated tests.
add body data attribute option to the redirect helper
integrate new helpers into signin
return an empty object if parsing response fails
Merge pull request #694 from optimizely/ssmith/pricing-gray-logos

MKT-808 -- Use gray logos on pricing page, remove tripadvisor, add travelzoo
Merge pull request #693 from optimizely/ssmith/travelzoo

MKT-792 -- Replace tripadvisor with travelzoo on homepage
revert to include nvm submodule?
remove old mobile code files
Merge pull request #696 from optimizely/dfoxpowell/create-account-redirect

move create account /welcome redirect inside helper
resolve merge conflicts.
remove cached files.
Remove ui tests from unecessary pages.
Merge pull request #695 from optimizely/krush/null

QA updates to the pricing page.
resolve merge conflict