Add support for the neighbors plugin (#98)

tests/pelicanconf.py

@@ -3,10 +3,13 @@
 
 from __future__ import unicode_literals
 
+# Optional 'neighbors' plugin adds previous/next post buttons to articles.
 PLUGIN_PATHS = ['../plugins']
-PLUGINS = ['i18n_subsites']
+PLUGINS = ['i18n_subsites', 'neighbors']
 
-JINJA_ENVIRONMENT = {'extensions': ['jinja2.ext.i18n', 'jinja2.ext.autoescape', 'jinja2.ext.with_']}
+JINJA_ENVIRONMENT = {'extensions': ['jinja2.ext.i18n',
+                                    'jinja2.ext.autoescape',
+                                    'jinja2.ext.with_']}
 
 AUTHOR = u'Test'
 SITEURL = u'http://localhost:8000'
@@ -54,8 +57,6 @@ CC_LICENSE = {
 
 COPYRIGHT_YEAR = 2016
 
-DEFAULT_PAGINATION = 10
-
 STATUSCAKE = {
     'trackid': 'test-test',
     'days': 7,