Merge remote-tracking branch 'origin/master' into test-helper

* origin/master:
  Add Gemfile.lock sample
  Remove deprecated method
  #all_extensions already includes primary extension
  typo
  remove unused assertion
  Symlink ant.xml to build.xml
  Avoid shadowing variable name
  Update comment
  Make missing sample failure message similar
  Remove blank extensions property
  Fix sample tests
  Add Forth extensions .f and .for; add heuristics for Forth and FORTRAN.
  Add FORTRAN and Forth samples.
  Extensions aren't actually required
  Fix errors from pedantic test
  Make pedantic test actually pedantic
  Removing extensions when they should be filenames
  Adding sample pom.xml files
  Link to contributing docs
  require samples if filename matches multiple languages

Conflicts:
	test/test_pedantic.rb

test/test_heuristics.rb

@@ -100,6 +100,16 @@ class TestHeuristcs < Test::Unit::TestCase
     end
   end
 
+  def test_f_by_heuristics
+    languages = ["FORTRAN", "Forth"]
+    languages.each do |language|
+      all_fixtures(language).each do |fixture|
+        results = Heuristics.disambiguate_f(fixture("#{language}/#{File.basename(fixture)}"))
+        assert_equal Language[language], results.first
+      end
+    end
+  end
+
   # Candidate languages = ["Hack", "PHP"]
   def test_hack_by_heuristics
     results = Heuristics.disambiguate_hack(fixture("Hack/funs.php"))