more robust algorithm to calculate gap size
update ignore file
build libglib-2.0 and libz for sdcv
fix cross compiling of glib and libz
add glib and libz to koreader dist
bugfix: compatibility check for traditional color values
Merge pull request #84 from chrox/master

build libglib-2.0 and libz for sdcv
Merge remote-tracking branch 'upstream/master' into blitbuffer-multi-bpp