Make cs-config expose an '--tools-prefix' for the build helpers provided by CS (eg relaytool). Extra option since it may actually point to inside the source tree, not one of the other prefixes.
Make cs-config expose an '--tools-prefix' for the build helpers provided by CS (eg relaytool). Extra option since it may actually point to inside the source tree, not one of the other prefixes.

git-svn-id: 28d9401aa571d5108e51b194aae6f24ca5964c06@32038 8cc4aa7f-3514-0410-904f-f2cc9021211c

crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS