Stop doing network requests on Main Thread

[modcrafts]

Citadel/src/main/java/com/github/alexthe666/citadel/Citadel.java

Line 144 in e86ca4f

BufferedReader urlContents = WebHelper.getURLContents("https://raw.githubusercontent.com/Alex-the-666/Citadel/master/src/main/resources/assets/citadel/patreon.txt", "assets/citadel/patreon.txt");

its fetching patreon lists on GitHub, if server is hosted on some where that have bad network connection to Github (Like in China), This mod will stall the entire server for like couple minutes.