Starting with tag:
[TAG urscheme-2
Kragen Javier Sitaker <kragen@pobox.com>**20080303215149] 
[factored out most of the magic-number-handling stuff
Kragen Javier Sitaker <kragen@pobox.com>**20080304072412] 
[rename + to foo in sample-closure-expression for clarity
adi@bobble.hexapodia.org**20080324221904] 
[whitespace fixes
adi@bobble.hexapodia.org**20080324235828] 
[implement arena bounds checking
adi@bobble.hexapodia.org**20080325041309
 
 Test against arena end and error out rather than segfaulting.
 Adds about 0.5% to stage2-test elapsed on Pentium M 1.4 GHz, and
 increases size(1) about 3277 bytes.
 
 urscheme-compiler  :                    urscheme-compiler  :
 section        size        addr    section        size        addr
 .text         89933   134512756  |      .text         86828   134512756
 .rodata       43672   134602692  |      .rodata       43504   134599584
 .data          1424   134647808  |      .data          1420   134643712
 .bss      134218752   134649232  |      .bss      134218752   134645132
 Total     134353781              |      Total     134350504
] 
[add arena-full checking to emit-malloc too
adi@bobble.hexapodia.org**20080326043206] 
[changes to enable compilation on amd64 (thanks Matthew O'Connor)
Kragen Javier Sitaker <kragen@pobox.com>**20080526003127] 
[some documentation updates
Kragen Javier Sitaker <kragen@pobox.com>**20080526003148] 
[tiny compiler improvements
Kragen Javier Sitaker <kragen@pobox.com>**20080526003220] 
[made profiling work with cachegrind
Kragen Javier Sitaker <kragen@pobox.com>**20080913225024] 
[added matthew's comments about getting it to run on MacOS X
Kragen Javier Sitaker <kragen@pobox.com>**20080913225147] 
[some reformatting of README files to use UTF-8 smart quotes
Kragen Javier Sitaker <kragen@pobox.com>**20080913225209] 
[slightly improved comments in assembly output
Kragen Javier Sitaker <kragen@pobox.com>**20080913225255] 
[reformatted README.profiling into Markdown
Kragen Javier Sitaker <kragen@pobox.com>**20080913225805] 
[reformatted README.performance and made it Markdown
Kragen Javier Sitaker <kragen@pobox.com>**20080913230419] 
[changed from using MzScheme to using Guile by default
kragen@canonical.org**20100411200529] 
[added urscheme 3 to list of tarballs to download
kragen@canonical.org**20100411201356] 