make config.base slightly saner
starting on out-of-tree build support
proxy function closer to operation
make vpath add dependency to doscript
reorganize files
make vfind & config.base play nice
vfind takes multiple arguments/works with abspath right
updated build/*.do to use vfind where appropriate
fix link command
fix $3 handling in redirection
rename config to config.conf to allow out-of-tree build root to override
in-tree config.do
make clean dofiles work with out-of-tree checkouts
vpath script cleanup
fix README to not use relative binary paths, as expected usage places it
on the $PATH