Fix exclusions Python/Django versions for Travis

Author: jmcclell

.travis.yml

@@ -38,16 +38,16 @@ cache:
 matrix:
   exclude:
     # Python 3.7 is supported as of django 2.0
-    - {python: "3.6", env: DJANGO="Django<1.3"}
-    - {python: "3.6", env: DJANGO="Django<1.4"}
-    - {python: "3.6", env: DJANGO="Django<1.5"}
-    - {python: "3.6", env: DJANGO="Django<1.6"}
-    - {python: "3.6", env: DJANGO="Django<1.7"}
-    - {python: "3.6", env: DJANGO="Django<1.8"}
-    - {python: "3.6", env: DJANGO="Django<1.9"}
-    - {python: "3.6", env: DJANGO="Django<1.10"}
-    - {python: "3.6", env: DJANGO="Django<1.11"}
-    - {python: "3.6", env: DJANGO="Django<2.0"}
+    - {python: "3.7", env: DJANGO="Django<1.3"}
+    - {python: "3.7", env: DJANGO="Django<1.4"}
+    - {python: "3.7", env: DJANGO="Django<1.5"}
+    - {python: "3.7", env: DJANGO="Django<1.6"}
+    - {python: "3.7", env: DJANGO="Django<1.7"}
+    - {python: "3.7", env: DJANGO="Django<1.8"}
+    - {python: "3.7", env: DJANGO="Django<1.9"}
+    - {python: "3.7", env: DJANGO="Django<1.10"}
+    - {python: "3.7", env: DJANGO="Django<1.11"}
+    - {python: "3.7", env: DJANGO="Django<2.0"}
 
     # Python 3.6 is supported as of django 1.8
     - {python: "3.6", env: DJANGO="Django<1.3"}
@@ -65,11 +65,13 @@ matrix:
     - {python: "3.5", env: DJANGO="Django<1.7"}
     - {python: "3.5", env: DJANGO="Django<1.8"}
 
-    # Python 3.4 is supported as of django 1.5
+    # Python 3.4 is supported as of django 1.5, but dropped by 2.0+
     - {python: "3.4", env: DJANGO="Django<1.3"}
     - {python: "3.4", env: DJANGO="Django<1.4"}
     - {python: "3.4", env: DJANGO="Django<1.5"}
     - {python: "3.4", env: DJANGO="Django<1.6"}
+    - {python: "3.3", env: DJANGO="Django<2.0"}
+    - {python: "3.3", env: DJANGO="Django<3.0"}
 
     # Python 3.3 is supported as of django 1.5, but dropped by 1.9+
     - {python: "3.3", env: DJANGO="Django<1.3"}
@@ -92,8 +94,8 @@ matrix:
     - {python: "3.2", env: DJANGO="Django<3.0"}
 
     # Python 2.7 is supported up until django 2.0
-    - {python: "2.6", env: DJANGO="Django<2.0"}
-    - {python: "2.6", env: DJANGO="Django<3.0"}
+    - {python: "2.7", env: DJANGO="Django<2.0"}
+    - {python: "2.7", env: DJANGO="Django<3.0"}
 
     # Python 2.6 is supported up until django 1.7
     - {python: "2.6", env: DJANGO="Django<1.8"}