Log Message:
Update poppler and it's libraries to version 0.57.0.

Fixes CVE-2017-9865.

Changes from NEWS file:

core:
 * Fix parsing of Type 1 fonts with newlines in encoding sequences. Bug #101728
 * Fix crash in broken documents

utils:
 * pdfunite: Fix crash with broken documents. Bug #101208
 * pdftohtml: skip control characters Bug #101770
 * pdfseparate: minor improvement to the documentation. Bug #101800

build system:
 * cmake: Set RUNPATH for poppler shared libs. Bug #101945
 * configure: fix --disable-FEATURE actually enabling the feature