borschik freeze: tech to freeze files in dirs
relative paths in require
move result to local scope
remove process.env.BORSCHIK_FREEZABLE_EXTS
forgotten js for browser
Revert "forgotten js for browser"

This reverts commit 355f5b2f60fc6756e84233d141d780bf75676f3a.
don't use tech in borschik freeze
rename borschik-freeze
fix paths after rename
tests for borschik freeze
merge freeze.js and borschik-freeze.js
Code cleanup
Merge branch 'pr/79'