Upgrade to ecto 3 and phoenix_ecto 4

[kevbuchanan]

Pending upgrades being released for other dependencies:

• Upgrade to Ecto 3 adam12/phoenix_mtm#16
• Fixing warnings when upgrade to ecto3 happened zven21/turbo_ecto#25

[Preen]

We'll take a look at this asap. In the most critical situation right now with work before christmas. But so you know, we really appreciate your support. :)

[mileandra]

Unfortunately we won't be able to submit this yet, as hex won't allow us to have non-hex dependencies. So we need to ensure there are stable versions for turbo_ecto and phoenix_mtm

[yukster]

@kevbuchanan both of the above pulls in dependencies are merged. Can you update your branch?

[kevbuchanan]

Looks like there's not yet a release published for turbo_ecto.

[yukster]

Thanks @Preen, beat me to it.

[Preen]

I have asked about turbo_ecto and support for ecto 3. Hope they answer soon :)

[Preen]

@mileandra @zven21 have upgraded ecto_turbo for a public release to support ecto 3.