- Start removing #ifdef HAVE_TLS by sneaky tricks.

- Begin implementation of TLS in wx-console
- Remove ignoring SIGCHLD from console.
- Rework the dlist binary search routines for implemenation
  of the Volume reservation code -- make it more general.
- Strip double slashes // from Win32 filenames in an attempt
  to resolve restore problems on some systems.
- Fix a minor bugs in the trace code that caused the first
  line output to be lost.
- Implement a good first cut at adding Volume reservation code
  to the storage daemon (in file reserve.c).
- Remove old unused code from the tree.c routines.