add samples to test files (no build for gem)

jekyll-scholar-extras.gemspec

@@ -9,7 +9,7 @@ Gem::Specification.new do |s|
   s.version     = Jekyll::ScholarExtras::VERSION.dup
   s.platform    = Gem::Platform::RUBY
   s.authors     = ['Hiren D. Patel']
-  s.email       = ''
+  s.email       = 'hdpatel at uwaterloo dot ca'
   s.homepage    = 'http://github.com/hdpatel/jekyll-scholar-extras'
   s.summary     = 'Extras for Jekyll extensions for the academic blogger jekyll-scholar.'
   s.description = %q{
@@ -36,7 +36,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency('redcarpet', "~> 1.9")  
 
   s.files        = `git ls-files`.split("\n")
-  s.test_files   = `git ls-files -- {test,spec,features}/*`.split("\n")
+  s.test_files   = `git ls-files -- {samples,test,spec,features}/*`.split("\n")
   s.executables  = []
   s.require_path = 'lib'