automake -Wall, and address its output

/usr/share/automake-1.14/am/ltlibrary.am: warning: 'libminidjvu.la': linking libtool libraries using a non-POSIX
/usr/share/automake-1.14/am/ltlibrary.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
Makefile.am:21:   while processing Libtool library 'libminidjvu.la'
generate and install .pc file for pkg-config minidjvu
install .pc file for pkg-config minidjvu in -dev package
update debian/control

Remove upstream development repo where packaging repo belongs.
log changes