feature #268 [fix] [sl] Slovenian translation fix (peterkokot)

This PR was squashed before being merged into the master branch (closes #268).

Discussion
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[fix] [sl] Slovenian translation fix

This ads Slovenian translation and fixes BackBee English Twig template.

Commits
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3e6c35d [fix] [sl] Slovenian translation fix

projects/en/backbee.html.twig

@@ -1,7 +1,11 @@
-<p>
-BackBee is an open source CMS designed to revolutionize user experience.
-It uses "On Page Editing" architecture making content contribution intuitive and secure
-without sacrificing the platform's performance.
-BackBee is also conceived to create "Out of the Box" websites that are highly responsive.
-BackBee is distributed under GNU terms of the General Public License (or "GPL").
-</p>
+{% block description %}
+    <p>
+
+        BackBee is an open source CMS designed to revolutionize user experience.
+        It uses "On Page Editing" architecture making content contribution intuitive and secure
+        without sacrificing the platform's performance.
+        BackBee is also conceived to create "Out of the Box" websites that are highly responsive.
+        BackBee is distributed under GNU terms of the General Public License (or "GPL").
+
+    </p>
+{% endblock %}

projects/sl/backbee.html.twig

@@ -0,0 +1,11 @@
+{% block description %}
+    <p>
+
+        BackBee je odprto kodni CMS načrtovan za revolucijo uporabniške izkušnje.
+        Uporablja arhitekturo "urejanje na strani", kar naredi distribucijo vsebine intuitivno in varno
+        brez žrtvovanja uspešnosti platforme.
+        BackBee je tudi zasnovan za izdelavo spletnih strani "iz škatle", ki so visoko odzivne.
+        BackBee je distribuiran pod GNU pogoji Splošne javne licence (oz. "GPL").
+
+    </p>
+{% endblock %}

translations/component.sl.xliff

@@ -309,6 +309,15 @@
                 <target />
             </trans-unit>
 
+            <trans-unit id="vardumper.summary">
+                <source>validator.summary</source>
+                <target>Ponuja mehanizme za pregled skozi katerokoli arbitrarno PHP spremenljivko. </target>
+            </trans-unit>
+            <trans-unit id="vardumper.description">
+                <source>validator.description</source>
+                <target />
+            </trans-unit>
+
             <trans-unit id="yaml.summary">
                 <source>yaml.summary</source>
                 <target>Naloži in shrani datoteke YAML.</target>