Added configuration option --enable-lib-exec that can remove executable permission from installed shared libraries and Yate modules.
Attempt to detect the proper default to match Debian / Ubuntu install policy.


git-svn-id: http://yate.null.ro/svn/yate/trunk@5866 acf43c95-373e-0410-b603-e72c3f656dc1
Merge branch 'upstream' of github.com:vir/yate into deb
Updated debian package version to 5.3.1~svn5866