Add swap tags.
Fix test it out on homepage.
Fix homepage error.
Merge pull request #510 from optimizely/krush/smartling-fixes

Bug fixes
add error modal and utility functions for error handling
fix default message
Merge pull request #511 from optimizely/dfoxpowell/error-dialog

add error modal and utility functions for error handling
add jqmClose class to close modal buttons
Merge pull request #512 from optimizely/dfoxpowell/error-dialog

add jqmClose class to close modal buttons
Merge branch 'master' of github.com:optimizely/marketing-website into dfoxpowell/ie-create-exp-redirect