ignore pickles in data/ and support py3.9

.gitignore

@@ -1,5 +1,5 @@
 # OSACA specific files and folders
-osaca/taxCalc/
+*.*.pickle
 
 # Byte-compiled / optimized / DLL files
 __pycache__/

.travis.yml

@@ -3,9 +3,9 @@ language: python
 python:
     - "3.5"
     - "3.6"
-# Python 3.7 not working yet
     - "3.7"
     - "3.8"
+    - "3.9"
 before_install: 
 #  - pip install tox-travis
   - pip install codecov

setup.py

@@ -83,7 +83,7 @@ setup(
         #   3 - Alpha
         #   4 - Beta
         #   5 - Production/Stable
-        'Development Status :: 3 - Alpha',
+        'Development Status :: 4 - Beta',
 
         # Indicate who your project is intended for
         'Intended Audience :: Developers',
@@ -100,6 +100,9 @@ setup(
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
     ],
 
     # What doesd your project relate to?

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py35,py36
+envlist = py35,py36,py37,py38,py39
 [testenv]
 commands=
     python tests/all_tests.py