PDFBOX-464: auto-download of checkstyle-jars, adjusting some names and directories
PDFBOX-464: auto-download of checkstyle-jars, adjusting some names and directories

git-svn-id: 73746072a361c8027bb2177f17128911b05b2bab@774478 13f79535-47bb-0310-9956-ffa450edef68

benmccann/pdfbox,mathieufortin01/pdfbox,torakiki/sambox,mathieufortin01/pdfbox,BezrukovM/veraPDF-pdfbox,torakiki/sambox,gavanx/pdflearn,veraPDF/veraPDF-pdfbox,ZhenyaM/veraPDF-pdfbox,ChunghwaTelecom/pdfbox,mdamt/pdfbox,gavanx/pdflearn,joansmith/pdfbox,ZhenyaM/veraPDF-pdfbox,mdamt/pdfbox,benmccann/pdfbox,BezrukovM/veraPDF-pdfbox,veraPDF/veraPDF-pdfbox,joansmith/pdfbox,ChunghwaTelecom/pdfbox