Merge pull request #6 from pjediny/plugin-dirs-fix

Don't remove defaults for plugin_dirs
diff --git a/heat/files/mitaka/heat.conf.Debian b/heat/files/mitaka/heat.conf.Debian
index 80f7ff3..56d2466 100644
--- a/heat/files/mitaka/heat.conf.Debian
+++ b/heat/files/mitaka/heat.conf.Debian
@@ -30,7 +30,7 @@
 
 # List of directories to search for plug-ins. (list value)
 {%- if server.get('dir', {}).plugins is defined %}
-plugin_dirs={{ server.dir.plugins|join(",") }}
+plugin_dirs=/usr/lib64/heat,/usr/lib/heat,/usr/local/lib/heat,/usr/local/lib64/heat,{{ server.dir.plugins|join(",") }}
 {%- endif %}
 
 heat_metadata_server_url={{ server.metadata.protocol }}://{{ server.metadata.host }}:{{ server.metadata.port }}
diff --git a/heat/files/newton/heat.conf.Debian b/heat/files/newton/heat.conf.Debian
index 1c41dc9..3250b4e 100644
--- a/heat/files/newton/heat.conf.Debian
+++ b/heat/files/newton/heat.conf.Debian
@@ -30,7 +30,7 @@
 
 # List of directories to search for plug-ins. (list value)
 {%- if server.get('dir', {}).plugins is defined %}
-plugin_dirs={{ server.dir.plugins|join(",") }}
+plugin_dirs=/usr/lib64/heat,/usr/lib/heat,/usr/local/lib/heat,/usr/local/lib64/heat,{{ server.dir.plugins|join(",") }}
 {%- endif %}
 
 heat_metadata_server_url={{ server.metadata.protocol }}://{{ server.metadata.host }}:{{ server.metadata.port }}
diff --git a/heat/files/ocata/heat.conf.Debian b/heat/files/ocata/heat.conf.Debian
index 3aecf39..f970701 100644
--- a/heat/files/ocata/heat.conf.Debian
+++ b/heat/files/ocata/heat.conf.Debian
@@ -23,7 +23,7 @@
 # List of directories to search for plug-ins. (list value)
 #plugin_dirs = /usr/lib64/heat,/usr/lib/heat,/usr/local/lib/heat,/usr/local/lib64/heat
 {%- if server.get('dir', {}).plugins is defined %}
-plugin_dirs={{ server.dir.plugins|join(",") }}
+plugin_dirs=/usr/lib64/heat,/usr/lib/heat,/usr/local/lib/heat,/usr/local/lib64/heat,{{ server.dir.plugins|join(",") }}
 {%- endif %}
 
 # The directory to search for environment files. (string value)