Add NOTICE file, update license to Apache-2.0, update package.json li…

…cense fields

LICENSE

@@ -1,24 +1,180 @@
-The MIT License (MIT)
 
-Copyright (c) 2016 The stdlib Authors.
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
 
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+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
 
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+   END OF TERMS AND CONDITIONS
 
 
 

NOTICE

@@ -0,0 +1 @@
+Copyright (c) 2016 The Stdlib Authors.