v1.18.0-RC8

updated common

v1.18.0-RC7: Merge pull request #1648 from 0chain/fix/verifyTxn

Fix/verify txn

v1.18.0-RC6: Merge pull request #1646 from 0chain/debug/0box-build

Fix/0box build

v1.18.0-RC5: Merge pull request #1644 from 0chain/fix/add-verify-signature

Fix/add verify signature

v1.18.0-RC4

added logging

v1.18.0-RC3: Merge pull request #1583 from 0chain/fix/refactor-zboxcore

Fix/refactor zboxcore and zcncore

v1.18.0-RC2: Merge pull request #1639 from 0chain/fix/root-update

Fix root update

v1.18.0-RC1: Merge pull request #1635 from 0chain/fix/upload-retries

Add upload retries

v1.17.11: Merge pull request #1628 from 0chain/hotfix/consensus-upload

Fix consensus in upload

v1.17.10: Merge pull request #1631 from 0chain/hotfix/update-readme

Revert readme changes