Remove xpathio.sh, add test script to iotest.sh, update the iotestx images to the smaller size images

git-svn-id: svn://dev.exiv2.org/svn@3127 b7c8b350-86e7-0310-a4b4-de8f6a8f16a3
msvc2005: use project default OutFile to help 2008/10/12 project conversion wizard (no more exiv2sd.dll type filenames).

git-svn-id: svn://dev.exiv2.org/svn@3128 b7c8b350-86e7-0310-a4b4-de8f6a8f16a3