[PDFBOX-1484] Avoid NumberFormatException if the CharString doesn't have the right number of elements + Fix an issue on XMPBox

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1435867 13f79535-47bb-0310-9956-ffa450edef68
PDFBOX-1497 : avoid ArrayOutOfBound on PDDeviceN.getAttributes

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1435877 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch 'upstream/trunk' into trunk