Fix memory consumption when tranferring large files with SSL.
    - Fixed SSL write return codes and removed OpenSSL nap
- Add httpSetRouteDefence, httpSetRouteMonitor APIs for Monitor/Defense capability
- Add Stealth mode to not emit Server Http header. Add httpSetRouteStealth API.
- Add ShowErrors capability. Refactor httpError to listen to SetErrors setting.
- Fix parsing corrupt Content-Range headers.
Change EspShowErrors to ShowErrors
Add Monitor, Defence,and Stealth and ShowErrors directives.
Update ejs
Change EspShowErrors to ShowErrors