add license and copyright

LICENSE.txt

@@ -0,0 +1,23 @@
+# This is the MIT license
+
+# Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
+
+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.
+

cmd/gotail/gotail.go

@@ -1,3 +1,5 @@
+// Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
+
 package main
 
 import (

tail.go

@@ -1,3 +1,5 @@
+// Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
+
 package tail
 
 import (

tail_test.go

@@ -1,3 +1,5 @@
+// Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
+
 // TODO:
 //  * repeat all the tests with Poll:true
 

watch.go

@@ -1,3 +1,5 @@
+// Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
+
 // TODO: avoid creating two instances of the fsnotify.Watcher struct
 package tail