add comprehensive .gitignore (closes #9)
fix typos
make memory_use() cross-platform, rm peak option
make test more flexible
Merge branch 'memoryuse'
refactor directory structure (closes #5)
test scripts too (closes #20)
merge branch refactor5
let modules exclude themselves from automatic testing
test imports right (closes #16)
log to stdout, not stderr (closes #6)
brief shoutout for test.sh (closes #26)
title docs with commit hash
copy html docs to doc/ instead of symlinking
docs & Makefile support to push docs to web (closes #18)
how to build docs
refactor README (closes #27)
refactor README.mac into main docs
update mentions of Twepi to QUAC (closes #21)
fix some stale docs (closes #26)