[system,dump-magic-numbers] Fix format string warnings.
Merge pull request #703 from waywardmonkeys/warnings-fix-dump-magic-numbers

[system,dump-magic-numbers] Fix format string warnings.
[system] Fix crash from readdir() on 64bit Mac OS X.

We wrap the readdir and related calls in C so that we allow
the aliases that are set up in the header files to be used. This
keeps everything consistent and using the versions offering 64 bit
inodes and the new versions of the struct dirent.

At the same time, we move dirent-name() to C to keep it consistent
as well and slightly less magical.
Merge pull request #705 from waywardmonkeys/fix-64-bit-os-x-readdir

[system] Fix crash from readdir() on 64bit Mac OS X.
[system] Remove #"write-date" file property.

This was identical to #"modification-date", so there was no need
for it.
Merge pull request #706 from waywardmonkeys/remove-write-date

[system] Remove #"write-date" file property.
Missing release note for readdir() fix on OS X.
Discuss porting when no cross-compiler exists.
[dfmc,macro-expander] Remove unused *trace-stream*.
Merge pull request #707 from waywardmonkeys/remove-trace-stream-from-macro-expander

[dfmc,macro-expander] Remove unused *trace-stream*.
[project-manager] Fix jam-includes.
Merge pull request #708 from waywardmonkeys/fix-jam-includes

[project-manager] Fix jam-includes.
Minor clarification for README.rst.
Merge pull request #710 from cgay/readme

Minor clarification for README.rst.
Add a -verbose flag to dylan-compiler.  By default compilation is non-verbose.  See https://gist.github.com/cgay/6217601 for examples of both.
Merge pull request #711 from cgay/compiler-verbose-flag

Add a -verbose flag to dylan-compiler.
Improve configure checking for verbose flag.

If the installed dylan-compiler supported the "-verbose" flag, then
it wasn't getting the "-build" command added as it didn't match the
various test statements. So we just add -build when we add -verbose.
Don't add -verbose when we're coming in as part of a 'make'.

When coming in via 'make' rather than 'make 3-stage-bootstrap', this
may be an old or new compiler, so let the configure checks handle
everything appropriately.
Merge pull request #712 from dylan-lang/fix-compilation-without-bootstrapping

Fix compilation without bootstrapping
Update release notes for compiler -verbose flag.