Fix validation of autocomplete field on search page (fixes issue293).
Fix validation of autocomplete field on search page (fixes issue293).

Review URL: http://codereview.appspot.com/4515157/

Koulio/rietveld,ericmckean/rietveld,gco/rietveld,dushmis/rietveld,nbodepallictr/touchites-test,Koulio/rietveld,berkus/rietveld,aungzanbaw/rietveld,openlabs/cr.openlabs.co.in,salomon1184/rietveld,draem0507/rietveld,nareshboddepalli/touchites-test,nareshboddepalli/touchites-codereview,nareshboddepalli/touchites-codereview,foolonhill/rietveld,kscharding/integral-solutions-smxq,DeanHere/rietveld,salomon1184/rietveld,berkus/rietveld,arg0/rietveld,xtypebee/rietveld,google-code-export/rietveld,openlabs/cr.openlabs.co.in,v3ss0n/rietveld,foolonhill/rietveld,supriyantomaftuh/rietveld,xtypebee/rietveld,dushmis/rietveld,fuzan/rietveld,nbodepallictr/touchites-codereview,gavioto/rietveld,berkus/rietveld,sajingeo/rietveld,sajingeo/rietveld,rietveld-codereview/rietveld,openlabs/cr.openlabs.co.in,andyzsf/rietveld,fuzan/rietveld,Koulio/rietveld,robfig/rietveld,DeanHere/rietveld,nbodepallictr/touchites-test,nareshboddepalli/touchites-codereview,supriyantomaftuh/rietveld,gco/rietveld,rietveld-codereview/rietveld,fuzan/rietveld,gavioto/rietveld,draem0507/rietveld,aungzanbaw/rietveld,v3ss0n/rietveld,andyzsf/rietveld,ericmckean/rietveld,nareshboddepalli/touchites-test,salomon1184/rietveld,rietveld-codereview/rietveld,google-code-export/rietveld,arg0/rietveld,draem0507/rietveld,rietveld-codereview/rietveld,andyzsf/rietveld,gavioto/rietveld,nbodepallictr/touchites-test,ericmckean/rietveld,sajingeo/rietveld,v3ss0n/rietveld,supriyantomaftuh/rietveld,xtypebee/rietveld,aungzanbaw/rietveld,google-code-export/rietveld,arg0/rietveld,nbodepallictr/touchites-codereview,dushmis/rietveld,nareshboddepalli/touchites-test,DeanHere/rietveld,robfig/rietveld,robfig/rietveld,kscharding/integral-solutions-smxq,foolonhill/rietveld,kscharding/integral-solutions-smxq,nbodepallictr/touchites-codereview,gco/rietveld