dispatch: return read config options

dispatch: set global options on the request repo.ui If the request has a repo, and global options such as --verbose are passed, we need to set those explicitly on the repo.ui.

cmdserver: assign repo.baseui before running commands There are places in the code that use localrepository.baseui (see hg.remoteui), we need the ui descriptors (and possibly other things) to be set correctly on it, so output written to the remoteui descriptors ends up at the right place. Before this change, tests such as 'test-bookmarks-pushpull.t' didn't work.

cmdserver: copy repo.ui before running commands