Customize congrats page for employee engagement program.
preserve logo field when other fields are changed.
Fix caching strategy for employee engagement pages
Merge branch 'staging' into hoc-ee-congrats

Conflicts:
	pegasus/sites.v3/code.org/public/company-profiles/splat.haml
Merge pull request #60 from code-dot-org/hoc-ee-congrats

Customize congrats page for employee engagement program.