fixed twgit origin for feature migrate command
[twgit] Init hotfix 'hotfix-1.15.3'.
Merge branch 'hotfix-feature-migrate-origin' of https://github.com/jpottier/twgit into hotfix-1.15.3
PR #154 Fixed issue with feature migrate
Add both versions 1.15.2 and 1.15.3 into CHANGELOG.md
Merge branch 'hotfix-1.15.3' into stable