fixes #4928 remove deprecated references

.travis.yml

@@ -2,9 +2,6 @@ language: python
 cache: pip
 dist: trusty
 
-# Use container-based infrastructure
-sudo: false
-
 addons:
   postgresql: "9.6"
 
@@ -25,36 +22,27 @@ matrix:
    - env: TOXENV=py37-dj20-mysql-noelasticsearch
      python: 3.7
      dist: xenial
-     sudo: true
    - env: TOXENV=py37-dj21-postgres-noelasticsearch
      python: 3.7
      dist: xenial
-     sudo: true
    - env: TOXENV=py37-dj21-sqlite-noelasticsearch
      python: 3.7
      dist: xenial
-     sudo: true
    - env: TOXENV=py36-djmaster-postgres-noelasticsearch
      python: 3.6
    - env: TOXENV=py36-dj20-sqlite-elasticsearch2 INSTALL_ELASTICSEARCH2=yes
      python: 3.6
-     sudo: true
    - env: TOXENV=py36-dj21-sqlite-elasticsearch2 INSTALL_ELASTICSEARCH2=yes
      python: 3.6
-     sudo: true
    - env: TOXENV=py36-dj21-postgres-elasticsearch5 INSTALL_ELASTICSEARCH5=yes
      python: 3.6
-     sudo: true
    - env: TOXENV=py36-dj20-postgres-elasticsearch6 INSTALL_ELASTICSEARCH6=yes
      python: 3.6
-     sudo: true
    - env: TOXENV=py36-dj21-postgres-elasticsearch6 INSTALL_ELASTICSEARCH6=yes
      python: 3.6
-     sudo: true
    - env: TOXENV=py37-dj21-postgres-elasticsearch6 INSTALL_ELASTICSEARCH6=yes
      python: 3.7
      dist: xenial
-     sudo: true
   allow_failures:
     # Ignore failures on Elasticsearch tests because ES on Travis is intermittently flaky
     - env: TOXENV=py36-dj20-sqlite-elasticsearch2 INSTALL_ELASTICSEARCH2=yes

CONTRIBUTORS.rst

@@ -334,6 +334,7 @@ Contributors
 * Seb Brown
 * Noah B Johnson
 * Hillary Jeffrey
+* Nick Travis
 
 Translators
 ===========