@SuppressWarnings("unused")
    @UiHandler("gitRepoPull")
    public void onGitRepoPullClick(@SuppressWarnings("unused") final ClickEvent event) {
        if (getUiHandlers() != null) {
            getUiHandlers().onGitRepoPull(gitRepoPull);
        }
    }
Handles 'Pull from Git' button clicks.
Passes the button to display the wait icon.
@param event The button push event. Ignored. Can be null.
stroom-core-client/src/main/java/stroom/gitrepo/client/view/GitRepoSettingsViewImpl.java