Fixes Croatian translation syntax errors.

Updated message bundle jar.
Updated changelog.
Refactor to get more events from BTEngine.
Update hr.po
Update es.po - Replacing the word "Pares" by "Compañeros"

The word "Pares" translated from "Peers" in English doesn't have any sense with the real meaning of "Compañeros" who are the "Peers" that are sharing files.
Updated windows x86 jlibtorrent dll.