Update wkhtmltox to version 0.12.5

defaults/main.yml

-wkhtmltopdf_version_full: "0.12.4"
+wkhtmltopdf_version_full: "0.12.5"
+wkhtmltopdf_version_tag: "0.12.5-1"
 wkhtmltopdf_architecture: "amd64"

tasks/install.yml

 ---
 # file: roles/wkhtmltopdf/tasks/main.yml
 
+- name: "Cleanup old version"
+  file:
+    path: '/usr/local/wkhtmltox'
+    state: absent
+
 - name: "Ensure dependencies are installed"
   apt:
     name: '{{ item }}'
@@ -14,6 +19,7 @@
     - 'libxrender1'
     - 'xfonts-base'
     - 'xfonts-75dpi'
+    - 'xvfb'
 
 - name: "Ensure libjpeg dependencies are installed"
   apt:
@@ -31,8 +37,27 @@
     - 'libjpeg62-turbo'
   when: ansible_distribution_release == 'jessie'
 
-- name: "Download wkhtmltopdf"
-  unarchive:
-    src: 'https://github.com/wkhtmltopdf/wkhtmltopdf/releases/download/{{ wkhtmltopdf_version_full }}/wkhtmltox-{{ wkhtmltopdf_version_full }}_linux-generic-{{ wkhtmltopdf_architecture }}.tar.xz'
-    dest: '/usr/local'
-    remote_src: yes
+- name: "Check current version"
+  command: 'more /etc/wkhtmltox-version'
+  register: wkhtmltox_current_version
+  ignore_errors: 'yes'
+
+- block:
+
+  - name: "Download Deb Package"
+    get_url:
+      url: 'https://github.com/wkhtmltopdf/wkhtmltopdf/releases/download/{{ wkhtmltopdf_version_full }}/wkhtmltox_{{ wkhtmltopdf_version_tag }}.{{ ansible_distribution_release }}_{{ wkhtmltopdf_architecture }}.deb'
+      dest: '/tmp/wkhtmltox.deb'
+
+  - name: "Install Deb Package"
+    command: 'dpkg -i /tmp/wkhtmltox.deb'
+
+  - name: "Remember version"
+    copy:
+      content: '{{ wkhtmltopdf_version_tag }}'
+      dest: '/etc/wkhtmltox-version'
+      owner: 'root'
+      group: 'root'
+      mode: '644'
+
+  when: wkhtmltopdf_version_tag not in wkhtmltox_current_version.stdout