Fix systemd launch of timesheetsdb

- Add default environment file with postgres config
- Add full path to npm (makes ubuntu happy)
- Call handlers appropriately when systemd unit files are modified
- Add very basic test

Change-Id: I5b1dfab78e449492be193bccfe470813f3028195
diff --git a/tasks/Debian.yml b/tasks/Debian.yml
index f3563ea..95366c6 100644
--- a/tasks/Debian.yml
+++ b/tasks/Debian.yml
@@ -13,6 +13,15 @@
     update_cache: true
     cache_valid_time: 3600
 
+- name: Create environment config for timesheetsdb service
+  template:
+    src: "default.timesheetsdb.j2"
+    dest: "/etc/default/timesheetsdb"
+    owner: "root"
+    group: "root"
+    mode: "0640"
+  notify:
+    - restart-timesheetsdb
 
 - name: Create systemd service unit files for timesheetsdb service
   template:
@@ -23,3 +32,6 @@
     mode: "0644"
   with_items:
     - "timesheetsdb.service"
+  notify:
+    - start-timesheetsdb
+    - restart-timesheetsdb