Add libpam0g as dependency for packaging

.pkgr.yml

@@ -1,9 +1,27 @@
 targets:
   ubuntu-14.04:
-  ubuntu-12.04:
+    build_dependencies:
-  debian-7:
+      - libpam0g-dev
-  centos-6:
     dependencies:
+      - libpam0g
+      - git
+  ubuntu-12.04:
+    build_dependencies:
+      - libpam0g-dev
+    dependencies:
+      - libpam0g
+      - git
+  debian-7:
+    build_dependencies:
+      - libpam0g-dev
+    dependencies:
+      - libpam0g
+      - git
+  centos-6:
+    build_dependencies:
+      - pam-devel
+    dependencies:
+      - pam
       - git
 before:
   - mv packager/Procfile .