* Update proposer-selection.md
* Fixed typos
* fixed typos
* Attempt to address some comments
* Update proposer-selection.md
* Update proposer-selection.md
* Update proposer-selection.md
Added the normalization step.
* Addressed review comments
* New example for normalization section
Added a new example to better show the need for normalization
Added requirement for changing validator set
Addressed review comments
* Fixed problem with R2
* fixed the math for new validator
* test
* more small updates
* Moved the centering above the round-robin election
- the centering is now done before the actual round-robin block
- updated examples
- cleanup
* change to reflect new implementation for new validator
* Introduce EventValidBlock for informing peer about wanted block
* Merge with develop
* Add isCommit flag to NewValidBlock message
- Add test for the case of +2/3 Precommit from the previous round