Add missing variable

We don't properly define statsd_npm_name for npm based installs.

Also fix npm package installs, to add missing build dependencies.

Change-Id: I758ac9e469d4d2170ea0aa7be7194d43b1746f72
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

defaults/main.yaml

@@ -37,6 +37,8 @@ statsd_git_version: master
 
 statsd_install_method: git
 
+statsd_npm_name: statsd
+
 # tasks/service.yaml
 statsd_file_statsd_service_manage: true
 statsd_file_statsd_service_group: root

tasks/install.yaml

@@ -22,6 +22,6 @@
   package:
     name: "{{ statsd_build_depends }}"
     state: present
-  when: statsd_install_method == 'git'
+  when: statsd_install_method == 'git' or statsd_install_method == 'pip'
 
 - include: "install/{{ statsd_install_method }}.yaml"