Cleanup
Change configure options:
--enable-gdk-pixbuf to --with-gdk-pixbuf
--enable-libcurl to --with-libcurl
Merge branch 'configure-gdkpixbuf' into configure
Merge branch 'configure' into configure-gd-integration
Up to date
Add --with-gd option
Search package gdlib not but libgd
Initial implementation of gd integration
Merge branch 'configure-gd-integration' into gd-integration
Add HAVE_GD definition
Fix some build error
Fix run-time errors
Add integration for when both of gdlib and libcurl are enabled