Merge changes from CVS

- Update build to check for bind2 in udt 4.11
- Handle udt.h in /usr/include or /usr/include/udt
- Update internal dependency build script to work with the official release
- GT-486: Perform udt driver connection using the socket negotiated by ice in
- cleanup
- GT-481: avoid UDT driver blocking on accept, resulting in hung process if c