Merge pull request argotorg#10114 from ethereum/restructureBreaking

Re-structure list of breaking changes.

Merge pull request argotorg#10114 from ethereum/restructureBreaking

Re-structure list of breaking changes.

Merge pull request argotorg#10114 from ethereum/restructureBreaking

Re-structure list of breaking changes.

Merge pull request argotorg#10065 from ethereum/setReleaseDateFor074

Set release date for 0.7.4

Merge pull request argotorg#9975 from ethereum/prepareChangelog073

Set release date.

Merge pull request argotorg#9915 from ethereum/develop

Merge develop into release for 0.7.2

Merge pull request argotorg#9729 from ethereum/develop

Merge develop into release for 0.7.1

Merge pull request argotorg#9536 from ethereum/develop

Merge develop into release for 0.7.0

Merge pull request argotorg#9467 from ethereum/develop

Merge develop into release for 0.6.12

Merge pull request argotorg#9339 from ethereum/develop

Merge develop into release for 0.6.11.