Re-license as MIT (but see notes)

This library is licensed under MIT. But since the dependency File_MARC
is licensed under LGPL-2.1, this library cannot be used without complying
with LGPL-2.1.

Closes #5.

Author: danmichaelo

LICENSE

@@ -0,0 +1,20 @@
+Copyright (c) 2016 University of Oslo Science Library
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

composer.json

@@ -3,7 +3,7 @@
     "type": "library",
     "description": "Simple interface to parsing MARC records using File_MARC",
     "keywords": ["marc"],
-    "license": "GNU-LGPL",
+    "license": "MIT",
     "authors": [
         {
             "name": "Dan Michael O. Heggø",