Add license to gemspec

LICENSE

@@ -1,56 +1,20 @@
-Ruby is copyrighted free software by Yukihiro Matsumoto <matz@netlab.jp>.
-You can redistribute it and/or modify it under either the terms of the
-2-clause BSDL (see the file BSDL), or the conditions below:
-
-  1. You may make and give away verbatim copies of the source form of the
-     software without restriction, provided that you duplicate all of the
-     original copyright notices and associated disclaimers.
-
-  2. You may modify your copy of the software in any way, provided that
-     you do at least ONE of the following:
-
-       a) place your modifications in the Public Domain or otherwise
-          make them Freely Available, such as by posting said
-	  modifications to Usenet or an equivalent medium, or by allowing
-	  the author to include your modifications in the software.
-
-       b) use the modified software only within your corporation or
-          organization.
-
-       c) give non-standard binaries non-standard names, with
-          instructions on where to get the original software distribution.
-
-       d) make other distribution arrangements with the author.
-
-  3. You may distribute the software in object code or binary form,
-     provided that you do at least ONE of the following:
-
-       a) distribute the binaries and library files of the software,
-	  together with instructions (in the manual page or equivalent)
-	  on where to get the original distribution.
-
-       b) accompany the distribution with the machine-readable source of
-	  the software.
-
-       c) give non-standard binaries non-standard names, with
-          instructions on where to get the original software distribution.
-
-       d) make other distribution arrangements with the author.
-
-  4. You may modify and include the part of the software into any other
-     software (possibly commercial).  But some files in the distribution
-     are not written by the author, so that they are not under these terms.
-
-     For the list of those files and their copying conditions, see the
-     file LEGAL.
-
-  5. The scripts and library files supplied as input to or produced as 
-     output from the software do not automatically fall under the
-     copyright of the software, but belong to whomever generated them, 
-     and may be sold commercially, and may be aggregated with this
-     software.
-
-  6. THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-     IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-     PURPOSE.
+Copyright (c) 2011-2013 Hiroshi Nakamura, Martin Boßlet
+
+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.

krypt-core-ruby.gemspec

@@ -7,5 +7,6 @@ Gem::Specification.new do |s|
   s.summary = 'Ruby implementation of the krypt-core API'
   s.files = %w(LICENSE) + Dir.glob('{bin,lib,spec,test}/**/*')
   s.test_files = Dir.glob('test/**/test_*.rb')
-  s.require_path = "lib"
+  s.require_path = 'lib'
+  s.license = 'MIT'
 end

lib/krypt-core.rb

@@ -2,16 +2,31 @@
 
 = Info
 
-krypt-core API - Ruby version
+krypt-core API - Ruby implementation
 
 Copyright (C) 2011-2013
 Hiroshi Nakamura <nahi@ruby-lang.org>
 Martin Bosslet <martin.bosslet@gmail.com>
 All rights reserved.
 
-= License
-This program is distributed under the same license as Ruby.
-See the file 'LICENSE' for further details.
+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.
 
 =end