Reject blocks without justification which don't have the best number (#105)

* Initial commit

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Parent branch: origin/master

* Reject blocks without justification

* Revert "Reject blocks without justification"

This reverts commit ee60e12097939d4ccfe987a71db9a876319ae5ba.

* WIP

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Parent branch: origin/master

* WIP

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Parent branch: origin/master

* WIP

Forked at: 6c74beab
Parent branch: origin/master

* CLEANUP

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Parent branch: origin/master

* WIP

Forked at: 6c74beab
Parent branch: origin/master

* WIP

Forked at: 6c74beab
Parent branch: origin/master

* CLEANUP

Forked at: 6c74beab
Parent branch: origin/master

* WIP

Forked at: 6c74beab
Parent branch: origin/master

* WIP

Forked at: 6c74beab


Parent branch: origin/master

* Move HeadData to primitives

* Update network/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>

* Update network/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>

* CLEANUP

Forked at: 6c74beab
Parent branch: origin/master

* fix

* CLEANUP

Forked at: 6c74beab


Parent branch: origin/master

* messages

* for the greater good

* Update primitives/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>

* Update network/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>

* Update network/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>

* Update network/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>

Co-authored-by: Bastian Köcher <[email protected]>