Install gettext for translation jobs

Add install of gettext to prepare-zanata-client role so that projects
don't need to add it to their bindep.txt file.
gettext is essential for the role to work.

For consistency capitalize all names of tasks in the file.

Change-Id: Ic36534c4edfbb086f5bcc66ab657107552ba92de

roles/prepare-zanata-client/tasks/main.yaml

@@ -5,13 +5,15 @@
 - name: Find java package name
   include_vars: "{{ ansible_os_family }}.yaml"
 
-- name: install necessary packages
+- name: Install necessary packages
   package:
-    name: "{{ zanata_jre_package }}"
+    name:
+      - "{{ zanata_jre_package }}"
+      - gettext
     state: present
   become: yes
 
-- name: ensure zanata install dir
+- name: Ensure zanata install dir
   file:
     path: /opt/zanata
     owner: "{{ ansible_ssh_user }}"
@@ -57,12 +59,12 @@
     remote_src: yes
   when: not cached_client.stat.exists
 
-- name: ensure zanata-cli perms
+- name: Ensure zanata-cli perms
   file:
     path: "/opt/zanata/zanata-cli-{{ zanata_client_version }}/bin/zanata-cli"
     mode: 0755
 
-- name: link zanata-cli
+- name: Link zanata-cli
   file:
     path: /usr/local/bin/zanata-cli
     src: "/opt/zanata/zanata-cli-{{ zanata_client_version }}/bin/zanata-cli"
@@ -79,18 +81,18 @@
   become: true
   # Use sudo to ensure root ownership
 
-- name: set permissions for cacert
+- name: Set permissions for cacert
   file:
     path: /etc/ssl/certs/java/cacerts
     mode: 0644
   become: true
 
-- name: ensure zanata config dir
+- name: Ensure zanata config dir
   file:
     path: ~/.config
     state: directory
 
-- name: write out zanata config
+- name: Write out zanata config
   template:
     src: zanata.ini
     dest: ~/.config/zanata.ini