Add dependencies for sourceballs to be able to fetch sources

roles/dbscripts/tasks/main.yml

@@ -3,6 +3,9 @@
 - name: install svn, git, rsync and some perl stuff
   pacman: name=git,subversion,rsync,perl-dbd-pg,perl-timedate,diffstat state=present
 
+- name: install sourceballs requirements (makepkg download dependencies)
+  pacman: name=git,subversion,mercurial,breezy state=present
+
 - name: create dbscripts users
   user: name="{{ item }}" shell=/bin/bash
   with_items: