Added README and tests.

.codecov.yml

@@ -0,0 +1,4 @@
+coverage:
+  range: "0...100"
+  ignore:  
+    - "Tests/"

.travis.yml

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+os:
+  - linux
+  - osx
+language: generic
+sudo: required
+dist: trusty
+osx_image: xcode8
+script:
+  - eval "$(curl -sL https://swift.vapor.sh/ci)"
+  - eval "$(curl -sL https://swift.vapor.sh/codecov)"

README.md

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+# GateKeeper
+[![Language](https://img.shields.io/badge/Swift-3-brightgreen.svg)](http://swift.org)
+[![Build Status](https://travis-ci.org/nodes-vapor/gatekeeper.svg?branch=master)](https://travis-ci.org/nodes-vapor/gatekeeper)
+[![codecov](https://codecov.io/gh/nodes-vapor/gatekeeper/branch/master/graph/badge.svg)](https://codecov.io/gh/nodes-vapor/gatekeeper)
+[![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/nodes-vapor/gatekeeper/master/LICENSE)
+
+Rate Limiter and SSL enforcing middleware.
+
+## Integration
+Update your `Package.swift` file.
+```swift
+.Package(url: "https://github.com/nodes-vapor/paginator", majorVersion: 0)
+```
+
+## Getting started 🚀
+Both the rate limiter and SSL-enforcing middleware are easy to configure and get running.
+
+## SSLEnforcer 🔒
+`SSLEnforcer` has three configurable fields: the error to be thrown, your `Droplet` and the environments you wish to enforce on. The environments defaults to `[.production]`.
+```swift
+let drop = Droplet()
+// this will only enforce if running in `production` mode.
+let enforcer = SSLEnforcer(error: Abort.notFound, drop: drop)
+```
+
+If you wish to secure your endpoints during development you can do the following:
+```swift
+let enforcer = SSLEnforcer(
+    error: Abort.notFound,
+    drop: drop,
+    environments: [
+        .production,
+        .development
+    ]
+)
+```
+
+## RateLimiter ⏱
+`RateLimiter` has two configurable fields: the maximum rate and the cache to use. If you don't supply your own cache the limiter will create its own, in-memory cache.
+
+```swift
+let limiter = RateLimiter(rate: Rate(10, per: .minute))
+```
+
+### The `Rate.Interval` enumeration
+The currently implemented intervals are:
+```swift
+case .second
+case .minute
+case .hour
+case .day
+```
+
+## Credits 🏆
+This package is developed and maintained by the Vapor team at [Nodes](https://www.nodes.dk).
+
+## License 📄
+This package is open-sourced software licensed under the [MIT license](http://opensource.org/licenses/MIT)