Proposed Amendment: Disambiguate PR vs Webmaster

This amendment splits the previous role of Webmaster into two offices and modifies election wording to account for Webmaster being an appointed rather than elected office. 

Current officers, please read through these changes and leave line notes on any wording that you think it's essential to modify. Once you agree to the amendment, please leave a comment on this pull request stating that you vote for it to be ratified. After I have +1's from all current officers, I will merge it. 

Current officers:

@pop-n-fresh 
@lucywyman 
@iankronquist 
@rettigs 
@dean