update .swift-version and Package.swift

rabbitinspace · rabbitinspace · commit e6983b1870b5 · 2019-03-26T16:03:46.000+11:00
diff --git a/.swift-version b/.swift-version
@@ -1 +1 @@
-4.2
+5.0
diff --git a/Package.swift b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:4.2
+// swift-tools-version:5.0
 
 import PackageDescription
 
