Fix various l10n bugs (better no translation, that a wrong one)

po/sk.po

@@ -194,7 +194,7 @@ msgstr ""
 
 #: wicd/misc.py:95
 msgid "Connection successful."
-msgstr "Spojenie zrušené"
+msgstr ""
 
 #: gtk/gui.py:65 gtk/wicd-client.py:955
 msgid ""
@@ -877,7 +877,7 @@ msgstr "Odpojené"
 
 #: data/wicd.ui:108
 msgid "_Refresh"
-msgstr "Nastavenia"
+msgstr ""
 
 #: data/wicd.ui:122
 msgid "_Preferences"
@@ -889,7 +889,7 @@ msgstr "_O Programe"
 
 #: data/wicd.ui:213 data/wicd.ui:215
 msgid "Connecting..."
-msgstr "Končím pripojenie..."
+msgstr ""
 
 #: data/wicd.ui:228
 msgid "Cancel the current connection attempt"