Changes: * Updated to minecraft 1.12.2 * The heat exchange is now a single item, rather than 3. It's still placed in the same way as before though. * Existing heat exchangers probably won't load up properly. * In addition, its default texture is now closer to iron and quartz pipes than tanks Bugs fixed: * Fixed the pipe event bus calling event handlers multiple times (not fully fixed yet though) * Added the version update JSON link.