Merge pull request swiftlang#24 from devxoul/then

Add Then

Author: tkremenek

projects.json

@@ -1522,6 +1522,30 @@
       }
     ]
   },
+  {
+    "repository": "Git",
+    "url": "https://github.com/devxoul/Then.git",
+    "path": "Then",
+    "branch": "master",
+    "maintainer": "[email protected]",
+    "compatibility": {
+      "3.1": {
+        "commit": "daaea1ac2100ae86bd20f0920ebbd2f1becb2e6e"
+      }
+    },
+    "platforms": [
+      "Darwin"
+    ],
+    "actions": [
+      {
+        "action": "BuildSwiftPackage",
+        "configuration": "release"
+      },
+      {
+        "action": "TestSwiftPackage"
+      }
+    ]
+  },
   {
     "repository": "Git",
     "url": "https://github.com/vapor/vapor.git",