[chores] Updated openwisp_notifications to 0.2 openwisp#308

- Removed openwisp_notifications from `install-dev.sh`
  (openwisp_notification==0.2.1 is already released)
- Removed openwsip_users from `install-dev.sh`
  (openwisp_users==0.4.1 is already released)
- Added `rest` dependencies to openwisp_utils
Closes openwisp#308
Closes openwisp#282

install-dev.sh

@@ -1,10 +1,2 @@
 #!/bin/bash
 set -e
-
-# TODO: remove when openwisp-notifications 0.2 is released
-pip install -U https://github.com/openwisp/openwisp-notifications/tarball/dev
-
-# TODO: can be removed when openwisp-users 0.4.1 is released
-# Commit needed for failures in tests:
-# https://github.com/openwisp/openwisp-users/commit/ef347927136ddb4676479cb54cdc7cd08049e2e5
-pip install -U --no-deps https://github.com/openwisp/openwisp-users/tarball/master

requirements.txt

@@ -6,9 +6,9 @@ django-x509~=0.9.0
 django-taggit~=1.3.0
 django-loci>=0.3.1,<0.4.0
 django-flat-json-widget~=0.1
-openwisp-utils~=0.6.0
+openwisp-utils[rest]~=0.6.0
 openwisp-users~=0.4.0
-openwisp-notifications~=0.1
+openwisp-notifications~=0.2
 djangorestframework-gis>=0.12.0,<0.16.0
 netjsonconfig>=0.8.0,<0.9.0
 paramiko~=2.7.2