Merge pull request #70 from shekenahglory/staging

Staging
Merge pull request #71 from shekenahglory/staging

certificate creation for attestation signing
Merge pull request #72 from shekenahglory/staging

Remove attestation tokens from attestation table and add flags in auth_info
Merge pull request #74 from shekenahglory/staging

remove unused file
max attempts and max time limit on identity questions