detangle 0.2.5

What's Changed

• npm: lock the published 0.2.4 platform packages by @debug-diary-1 in #27
• migrate: an empty exclude no longer excludes every file by @debug-diary-1 in #28
• check: say when dependencies aren't installed by @debug-diary-1 in #29
• Release 0.2.5: a working migrate for empty excludes; say when dependencies aren't installed by @debug-diary-1 in #30

Full Changelog: v0.2.4...v0.2.5