Initial impl for mkdir, touch, rm, ls and cat
- directories and file entries in datomic as a SHA-1 merkle tree
- file content is stored in a git-blob-like schema
  (but uncompressed and w/o header)
Multiple file roots
WIP: core.type store
WIP fix child sha1
WIP
Rewrite using (potentially) type checked transaction fns
Working cp! and mv! file ops
Tests for file ops and fixes
Fully functional
standalone server
windows fixes
WIP kick entry hashes, (will replace with snapshots written to blob)
smoke tests pass again
Some windows niceties
Merge branch 'master' of ssh://cc.bendlas.net/repos/davstore
Web app working again
Fixes
fix copy response
More updated deps
kill lazymap dep
Prepare for first pre-release