added polymer-mini and polymer-micro to main
added polymer-mini and polymer-micro to main

Fixes #2617 by adding both files to main so they get copied over.

When using `bower-installer` (when I don't want to send dev files to production servers, and vulcanisation isn't set up yet) currently only `polymer.html` gets copied over. This fixes that.
Polymer/polymer,ikeagold/polymer,ktiedt/polymer,tjsavage/polymer,MartinsThiago/polymer,jordanyaker/polymer,gronke/polymer,tjsavage/polymer,gronke/polymer,exlerdesigns/polymer,JeremybellEU/polymer,yforrest/polymer,yforrest/polymer,Polymer/polymer,gazal-k/polymer,mgiuffrida/polymer,Endika/polymer,exlerdesigns/polymer,jordanyaker/polymer,Endika/polymer,MartinsThiago/polymer,gazal-k/polymer,tjsavage/polymer,ikeagold/polymer,yforrest/polymer,exlerdesigns/polymer,gazal-k/polymer,ktiedt/polymer,mgiuffrida/polymer,mgiuffrida/polymer,ikeagold/polymer,Endika/polymer,JeremybellEU/polymer,Polymer/polymer,JeremybellEU/polymer,ktiedt/polymer,jordanyaker/polymer,gronke/polymer,MartinsThiago/polymer