Django 3 Support (#190)

* Added Django 3 to matrix

* Updated for doco for Django 3

* Python 3.5 is not supported by Django 3

Author: peterfarrell

.travis.yml

@@ -24,7 +24,12 @@ env:
     - DJANGO='django>=2.0,<2.1'
     - DJANGO='django>=2.1,<2.2'
     - DJANGO='django>=2.2,<2.3'
+    - DJANGO='django>=3.0,<3.1'
     - DJANGO='--upgrade --pre django'
+jobs:
+  exclude:
+    - python: 3.5
+      env: DJANGO='django>=3.0,<3.1'  # Python 3.5 is not supported by Django 3
 matrix:
   fast_finish: true
   allow_failures:

README.md

@@ -8,7 +8,7 @@ encrypt and decrypt data for fields.
 ## Requirements
 
  - postgres with `pgcrypto`
- - Supports Django 1.11.x to 2.2.x
+ - Supports Django 1.11.x, 2.2.x, and 3.0.x
  - Compatible with Python 3 only
 
  Last version of this library that supports `Django` 1.8.x, 1.9.x, 1.10.x