upgrade geographic lib to 1.50.1 (#4)

README.md

@@ -3,6 +3,7 @@
 [![Swift Version](https://img.shields.io/badge/swift-5.1-blue.svg)](https://swift.org) 
 ![Platform](https://img.shields.io/badge/platform-osx--64|linux--64-lightgrey.svg)
 [![Build Travis-CI Status](https://travis-ci.org/dastrobu/geodesic.svg?branch=master)](https://travis-ci.org/dastrobu/geodesic) 
+[![Swift Version](https://img.shields.io/badge/GeographicLib-1.50.1-blue.svg)](https://geographiclib.sourceforge.io/) 
 
 Solver for the inverse geodesic problem in Swift.
 
@@ -24,8 +25,8 @@ and that's it.
 ## Implementation Details
 
 This Swift package is a wrapper for the 
-[C library for Geodesics 1.49](https://geographiclib.sourceforge.io/html/C/).
-The author of this library is Charles F. F. Karney ([email protected]). 
+[C library for Geodesics](https://geographiclib.sourceforge.io/html/C/).
+The author of this library is Charles Karney ([email protected]). 
 The goal of this Swift package is to make some algorithms from 
 [GeographicLib](https://geographiclib.sourceforge.io/) available to the Swift world.
 Alternatively one can employ the package 

Sources/geographiclib/LICENSE → Sources/geographiclib/LICENSE.txt

@@ -1,9 +1,7 @@
-This is the original LICENSE from GeographicLib:
-
 The MIT License (MIT); this license applies to GeographicLib,
 versions 1.12 and later.
 
-Copyright (c) 2008-2017, Charles Karney
+Copyright (c) 2008-2019, Charles Karney
 
 Permission is hereby granted, free of charge, to any person
 obtaining a copy of this software and associated documentation