Improve ability to identify failing migration

[Ecksters]

I'm submitting a...

• [ ] Bug report
• [x] Feature request
• [ ] Question

Current behavior

If a migration fails, and it's the first migration, without querying the migrations table in the DB or running verbose (which can get rather spammy), it's hard to know which migration is failing.

Expected behavior

• Migrations could (optionally?) output their name before running, so if an error occurs we can easily see where it was when it broke.
• Error handling could output which migration it was trying to run when the error occurred.

[stale[bot]]

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