BRE-107 - Update Bitgo-CLI version to 4.17.8 for Sprint Frozone release.

Reviewers: tyler

Reviewed By: tyler

Differential Revision: https://phabricator.bitgo.com/D9350

BG-4846 - Incremented version to 4.17.7.

Reviewers: kevin, leo

Reviewed By: leo

Differential Revision: https://phabricator.bitgo.com/D8633

BG-3531 - Update Bitgo-CLI version to 4.17.6 for release rt20180212.

Reviewers: zacleids, kevin

Reviewed By: zacleids, kevin

Differential Revision: https://phabricator.bitgo.com/D7889

fix typo

increment version

increment version

increment version

Incremented version to 4.17.1.

fix bitcoinCash dependency