See description

Fix FS#71 - When a link dependency fails, all dependent projects stuck
in Link/Wait
Fix FS#72 - Sometimes files don't get their status changed out of
"pending"
Fix FS#94 - Linker errors not parsed
Fix FS#78 - Failures in precompile step cause weird things with the
progress bar and build count

Implement FS#70 - Add "Up-to-date" status and show projects and files
that *aren't* being built with that status
Implement FS#84 - Upon first error, automatically open output window and
select project