Updated poppler packages fix security vulnerabilities

In Poppler 0.59.0, a NULL Pointer Dereference exists in the SplashOutputDev::type3D0() function in SplashOutputDev.cc via a crafted PDF document. (CVE-2017-14927) The FoFiType1C::convertToType0 function in FoFiType1C.cc in Poppler 0.59.0 has a heap-based buffer over-read vulnerability if an out-of-bounds font dictionary index is encountered, which allows an attacker to launch a denial of service attack. (CVE-2017-14976) In Poppler 0.59.0, a NULL Pointer Dereference exists in the GfxImageColorMap::getGrayLine() function in GfxState.cc via a crafted PDF document. (CVE-2017-15565)