Polish translation update.
Polish translation update.

* subversion/po/pl.po: translated 7 messages and 4 fuzzy.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion