added version files and strreplace.cc to xcode projects for pbd and midi++.
git-svn-id: svn://localhost/ardour2/trunk@1515 d708f5d6-7413-0410-9779-e7cbd77b26cf
Added XCode project for libardour
Modified midi++'s XCode to use consistant paths and depend on pbd.
git-svn-id: svn://localhost/ardour2/trunk@1493 d708f5d6-7413-0410-9779-e7cbd77b26cf