Add polish translations (8% done)

ChangeLog

@@ -68,6 +68,7 @@ Version 0.2.7 (under dev!):
    * core: improve /set command, new command /unset (task #6085)
    * core: add new input action "set_unread_current_buffer" to set unread
      marker for current buffer only (task #7286)
+   * core: add polish translation (thanks to Soltys)
    * core: remove key functions, replaced by /input command
    * core: fix nick completion bug (missing space after nick)
 

configure.in

@@ -46,7 +46,7 @@ solaris*)
 esac
 
 # Gettext
-ALL_LINGUAS="fr es cs hu de ru"
+ALL_LINGUAS="fr es cs hu de ru pl"
 AM_GNU_GETTEXT([use-libtool])
 AM_GNU_GETTEXT_VERSION([0.15])
 

po/CMakeLists.txt

@@ -21,6 +21,7 @@ SET(PO_FILES
   hu.po
   de.po
   ru.po
+  pl.po
   )
 
 SET(COPYRIGHT_HOLDER "WeeChat Team")