Squashed 'deps/frozen/' content from commit e6e1014

git-subtree-dir: deps/frozen
git-subtree-split: e6e101453d4cc2bff199b3402dc30c1cbed08175
Merge commit '4ed59c9a4cdfd1fe84f690c3758512b966eb6a19' as 'deps/frozen'
Use `frozen` module bundled in the substree
Merge pull request #130 from cesanta/subtree

Bundle `frozen` dependency (and possibly others) with git subtree