minor #685 Update Slovenian translations (petk)

This PR was merged into the master branch.

Discussion
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Update Slovenian translations

Hello, this patch updates Slovenian (sl_SI) translations according to the current English upstream version.

Commits
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bab712b Update Slovenian translations

Author: javiereguiluz

translations/messages.sl.xlf

@@ -255,6 +255,10 @@
                 <source>menu.rss</source>
                 <target>RSS objav bloga</target>
             </trans-unit>
+            <trans-unit id="menu.search">
+                <source>menu.search</source>
+                <target>Iskanje</target>
+            </trans-unit>
 
             <trans-unit id="post.to_publish_a_comment">
                 <source>post.to_publish_a_comment</source>
@@ -288,6 +292,14 @@
                 <source>post.deleted_successfully</source>
                 <target>Objava uspešno izbrisana!</target>
             </trans-unit>
+            <trans-unit id="post.search_for">
+                <source>post.search_for</source>
+                <target>Iskanje za ...</target>
+            </trans-unit>
+            <trans-unit id="post.search_no_results">
+                <source>post.search_no_results</source>
+                <target>Ni najdenih rezultatov</target>
+            </trans-unit>
 
             <trans-unit id="notification.comment_created">
                 <source>notification.comment_created</source>