Missing tag for 0.4.0

[mpapierski]

Hey guys,

I just noticed 0.4.0 is pushed to crates.io, but there is no v0.4.0 tag in the repo possibly causing us some troubles.

Is there any chance to have 0.4.0 tagged to the version that was pushed to crates?

Thanks!

[mpapierski]

... Or perhaps any chance to slightly change the interface in 0.4.0 to be backwards compatible with 0.3.0? For unknown reason I'm depending on 0.3 for U256, and I'm also depending on ethabi (which also depends on 0.3) but this time it gets resolved to 0.4.

    |                          ^^^^ the trait `std::convert::From<ethereum_types::U128>` is not implemented for `ethereum_types::uint::U256`

Etc.