Tweak Makefile-s to be more robust in the absence of documentation tools.
Fix commands on ReleaseChecklist page.
Tweak Makefile generation of control/version.sml.

Be more robust in the absence of git and/or working tree.
Use more robust command substitution syntax.
Add newline at end of control/version_sml.src.
Fix bug in intmaxToCommaString/uintmaxToCommaString.

An integer with 'n' digits such that 'n % 3 == 0' would be converted
to a string with no commas.
Update pages regarding SML/NJ 110.76 libraries.
Update Contact page noting SourceForge archives are again current.
Fix typo on Bugs201307DD page.
Updates to MatthewFluet page.
Update to ReleaseChecklist page.
Sort pages in mlton-guide.pdf.
Attachments are installed for localhost guide.
Update dates for release.
Merge pull request #34 from MatthewFluet/pre-201306-release

Final work for 20130715 release.