* port of feature-3.4/mv-gzip-export to devel branch
* add explicit namespaces so gcc 6.3.0 would successfully compile
* add conditional cleanup of ENCRYPTION file from another branch
* use _lseek() for Windows build to avoid deprecated warning.
* change from ifdef for lseek variants to TRI_LSEEK.
* force Windows lseek to return Linux expected type.
* Add tests for service failing on mount
* Don't install broken services
* Restore error page for broken services
* Prefer JSON error pages
* Expose service upsert in API
* Add Foxx fixes to CHANGELOG
* Update CHANGELOG
Typo