fixed error if a string is inputted into the input column of the minimum maximum of the date profile. (refs #800)
fixed error if a string is inputted into the input column of the minimum maximum of the date profile. (refs #800)

isaosano/OpenPNE3,C-nakajima/OpenPNE3,isaosano/OpenPNE3,upsilon/OpenPNE3,ShinichiU/AuthFramework,nishizoe/OpenPNE3,ShinichiU/AuthFramework,ShinichiU/AuthFramework,tejima/OP3PKG,upsilon/OpenPNE3,balibali/KakiageSNS,nishizoe/OpenPNE3,upsilon/travis-test,openpne/OpenPNE3,openpne/OpenPNE3,isaosano/OpenPNE3,tejima/testravis,C-nakajima/OpenPNE3,isaosano/OpenPNE3,C-nakajima/OpenPNE3,nise-nabe/ppcon-sns,nise-nabe/ppcon-sns,openpne/OpenPNE3,tejima/testravis,ShinichiU/OpenPNE3,kashiwasan/symfony-advanced,upsilon/travis-test,C-nakajima/OpenPNE3,openpne/OpenPNE3,tejima/testravis,balibali/KakiageSNS,ShinichiU/OpenPNE3,ShinichiU/OpenPNE3,ShinichiU/OpenPNE3,kashiwasan/symfony-advanced,tejima/OP3PKG