增加对django 2.x 的支持

mdeditor/urls.py

@@ -1,7 +1,14 @@
 # -*- coding:utf-8 -*-
-from django.conf.urls import url
+import django
+
 from .views import UploadView
 
+if django.VERSION[0] > 1:
+    from django.urls import re_path as url_func
+else:
+    from django.conf.urls import url as url_func
+
+
 urlpatterns = [
-    url(r'^uploads/$', UploadView.as_view(), name='uploads'),
-]
+    url_func(r'^uploads/$', UploadView.as_view(), name='uploads'),
+]

setup.py

@@ -18,9 +18,6 @@
     url='',
     author='pylixm',
     author_email='[email protected]',
-    install_requires=[
-        'django==1.11.10',
-    ],
     classifiers=[
         'Environment :: Web Environment',
         'Framework :: Django',
@@ -29,6 +26,7 @@
         'Framework :: Django :: 1.9',
         'Framework :: Django :: 1.10',
         'Framework :: Django :: 1.11',
+        'Framework :: Django :: 2.0',
         'Intended Audience :: Developers',
         'License :: OSI Approved :: GNU General Public License v3 (GPLv3)',
         'Operating System :: OS Independent',