CEE MARKETS-Stocks mostly retreat despite Waberer's IPO, bonds firm

* Political uncertainty fuels profit taking in CEE stock markets * Hungarian haulage firm Waberer's announces rare IPO * Bonds firms slightly, Polish central bank seen holding fire By Sandor Peto BUDAPEST, June 6 (Reuters) - Central European stocks fell on Tuesday despite a rare initial public offering (IPO) announced in Budapest, ahead of elections in Britain and France and as some Arab states severed ties with Qatar. Political uncertainty weighed on stock markets globa