move publish back to .publish

.gitignore

@@ -7,4 +7,4 @@ _site/
 *.bat
 *.tmp
 /lib
-_publish/
+.publish/

_config.yml

@@ -12,7 +12,7 @@ exclude:
   - package.json
   - gulpfile.js
   - README.md
-  - _publish
+  - .publish
 
 collections:
   categories:

gulpfile.js

@@ -71,5 +71,5 @@ gulp.task('lib', ['clean:lib'], function () {
 
 gulp.task('deploy', [], function () {
     return gulp.src(paths.dist + '**/*')
-        .pipe(ghPages({ cacheDir: './_publish' }));
+        .pipe(ghPages({ cacheDir: './.publish' }));
 });