Add http server e2e test #820
Revert "Add http server e2e test #820"

This reverts commit 2ec71e822ec98ffa8c1406c0c0e9b3103396beb7.
add e2e test for http #820
Merge branch 'master' of https://github.com/Microsoft-CISL/REEF
Merge branch 'master' of https://github.com/Microsoft-CISL/REEF
Merge branch 'master' of https://github.com/Microsoft-CISL/REEF
catch proper exception in httpServerPortRetryTest
Merge branch 'master' into juwang-httpTest
make sure the app finishes successfully in the HelloHttpTest
Merge branch 'juwang-httpTest'
bugfix: make sure HelloHttpTest app is cloes by timeout
Merge branch 'master' of github.com:Microsoft-CISL/REEF into shravan_context_failure