integrate build configuration patch into libk2pdfopt
Merge pull request #44 from chrox/master

integrate build configuration patch into libk2pdfopt
remove now superfluous libk2pdfopt.patch
Merge pull request #45 from hwhw/master

remove now superfluous libk2pdfopt.patch
Merge branch 'master' of github.com:hwhw/koreader-base
Merge remote-tracking branch 'upstream/master'