Clarified language between dialog and modals

We have two style of modals, a large modal and a small modal. In this changeset I made sure all the class names and styles and whatnot reflect these two modals.

Also removed usage of the word "dialog" in favor of "modal".

Removed some unused ids from style.css that reference modals that no longer exist.
Cache active monsters for the current player, update the list after create/save
Removed a bunch of old unused javascript files

Also moved a couple js libraries into the vendors directory