private static int compareVersions(String v1, String v2) {
		String[] v1p = v1.split("\\.");
		String[] v2p = v2.split("\\.");
		int maxl = Math.max(v1p.length, v2p.length);
		for (int i = 0; i < maxl; i++) {
			int v1n = safeParseNum(v1p, i);
			int v2n = safeParseNum(v2p, i);
			if (v1n > v2n) {
				return 1;
			} else if (v1n < v2n) {
				return -1;
			}
		}
		return 0;
	}
Checks if we're running the latest version of JBang by comparing its version
against the latest version on GitHub.
src/main/java/dev/jbang/util/VersionChecker.java