Clearly state the relevant CMU copyrights.
Fix typo.
[crt] Fix divide_double and unsigned_divide_double on 64bit platforms
[win32] Missing $ in Makefile.
[doc] Stub out a bit of debugging documentation.
Fill in descriptions of the debug functions.
[doc,cli] Add note about rlwrap.
Merge pull request #466 from abeaumont/master

[crt] Fix divide_double and unsigned_divide_double on 64bit platforms
Remove unused primitive-lambda-parameter.
Remove unused primitive-current-function.
[doc] Add notice about availability of functionality.
[doc] Fix toc sidebar from changing width
Merge pull request #467 from waywardmonkeys/remove-unused-primitives

Remove unused primitives
Merge pull request #468 from fracek/doc-layout-affix

[doc] Fix toc sidebar from changing width
Merge pull request #444 from waywardmonkeys/clarify-copyright

Clearly state the relevant CMU copyrights.
[crt] all should generate library.

Before this, the all target was just generating the object
files and the library was built during install.
There isn't an arch_flag any longer.
[common-dylan] Clarify get-application-filename.
[system] Stop using putenv().

This re-implements environment-variable-setter in terms of
setenv() and unsetenv(), avoiding messy code on our end,
using GC_malloc, and creating a memory leak due to the
use of putenv().
Minor typo fix.