deps.js v2: invalidate when declaration modified date is later than
deps.js (close #412, romochka-113)
deps.js v2: add test for deps.js invalidation when declaration modified date is later than deps.js (reference #412, romochka-113)
level scanner: don't ignore level/block/block.tech folders (close #406)
Merge branch 'i-406' into support/0.6.x
level scanner: don't ignore level/block/block.tech folders (close #406)