General hardening release
What's Changed
* Update docs, warn about SQ 10 compatibility by okorach in https://github.com/okorach/sonar-tools/pull/888
* Fix housekeeper branch verification by okorach in https://github.com/okorach/sonar-tools/pull/891
* Fix JSON loading errors - Fixes 892 by okorach in https://github.com/okorach/sonar-tools/pull/893
* Hardening by okorach in https://github.com/okorach/sonar-tools/pull/894
* Fixes branch deletion bugs by okorach in https://github.com/okorach/sonar-tools/pull/895
* Fix sonar-config multithreaded export by okorach in https://github.com/okorach/sonar-tools/pull/897
**Full Changelog**: https://github.com/okorach/sonar-tools/compare/v2.7...v2.7.1