Merge branch 'jk/push-config'

Restructure "git push" codepath to make it easier to add new configuration bits and then add push.followTags configuration that turns --follow-tags option on by default. * jk/push-config: push: allow --follow-tags to be set by config push.followTags cmd_push: pass "flags" pointer to config callback cmd_push: set "atomic" bit directly git_push_config: drop cargo-culted wt_status pointer