ChangeLog.v1: Fix typo in explanatory header.
Generate ChangeLog from git in make dist

Archive the existing ChangeLog to ChangeLog.libffi-3.1
fficonfig.h.in: Remove, configure generates it
doc: Remove autogenerated info file and stamp
Merge pull request #96 from joshtriplett/sawing-changelogs

Generate ChangeLog from git in make dist; remove it from version control
Merge pull request #97 from joshtriplett/remove-more-generated-files

Remove more generated files
Update version to 3.1-rc0.  Clean up README.
Merge configure.host into configure.ac

configure.host only has a single entry, and shows no signs of needing
more added.
Merge pull request #98 from joshtriplett/unconfigure.host

Merge configure.host into configure.ac