Because i'm totally new to github, i don't want to fork or branche your code to suggest any changes.
Just a small suggestion for your "iitc: upgradeablePortals"-script:
In version 0.2.1 it shows all portals that could be upgraded to playerlevel-1
What do you think about marking only the portals, that could be upgraded by the player himself?
This is done with a very small change in line 128
Just replace
if(possibleLevel >= playerLevel-1) {
with
if(possibleLevel > portal.options.level) {