fix: compatiblity with newer rack/omniauth

Author: jgraichen

omniauth-kerberos.gemspec

@@ -1,6 +1,8 @@
 # -*- encoding: utf-8 -*-
 
 Gem::Specification.new do |gem|
+  gem.version       = '0.3.0'
+  gem.name          = 'omniauth-kerberos'
   gem.authors       = ['Jan Graichen']
   gem.email         = ['[email protected]']
   gem.description   = 'An OmniAuth strategy for Kerberos.'
@@ -9,11 +11,8 @@ Gem::Specification.new do |gem|
 
   gem.executables   = `git ls-files -- bin/*`.split("\n").map { |f| File.basename(f) }
   gem.files         = `git ls-files`.split("\n")
-  gem.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
-  gem.name          = 'omniauth-kerberos'
   gem.require_paths = ['lib']
-  gem.version       = '0.3.0'
 
   gem.add_dependency 'timfel-krb5-auth', '~> 0.8'
-  gem.add_dependency 'omniauth-multipassword'
+  gem.add_dependency 'omniauth-multipassword', '~> 2.0'
 end