Tweaks to src/Makefile (while trying to figure out how to make libtool *not* relink the exiv2 binary every time I run make. It still does..)

git-svn-id: svn://dev.exiv2.org/svn@3168 b7c8b350-86e7-0310-a4b4-de8f6a8f16a3
Updated copyright.

git-svn-id: svn://dev.exiv2.org/svn@3169 b7c8b350-86e7-0310-a4b4-de8f6a8f16a3