handle dependencies correctly when dependent package is being updated at the same time

[anish]

==> Finished making: catalyst-utils 11.3-2 (Tue Apr 5 12:36:05 PDT 2011) loading package data... resolving dependencies... looking for inter-conflicts... error: failed to prepare transaction (could not satisfy dependencies) :: catalyst: requires catalyst-utils=11.2

THe above operation was updating catalyst as well as catalyst-utils. clyde should know that it needs to update the non dependent package first.