migrations::status command

[hrach]

Such command should show:

• which migrations needs to be exectured
• if there is any problem with groups, execution order, checksum problems, etc.

[Mikulas]

another option might be migrations:continue --dry-run

[hrach]

yeah, probably better.

[JanTvrdik]

I think the mindset of user calling migrations:continue --dry-run is different than mindset of user calling migrations:status.

The first one wants to know what would happen if he executed migrations:continue the second one wants to know the overall status – it should explain him in full sentences what can he do next.

[hrach]

Agreed.

[ondraondra81]

OK, I was try implementing it. :) see #88