Fix integration tests (follow up on #96, #97)

Author: adangel

test/manual_integration_tests.rb

@@ -64,7 +64,7 @@ def test_case_1_single_java_rule_changed
 
     assert_equal("This changeset changes 0 violations,\n" \
                  "introduces 0 new violations, 0 new errors and 0 new configuration errors,\n" \
-                 'removes 512 violations, 1 errors and 3 configuration errors.',
+                 'removes 512 violations, 0 errors and 3 configuration errors.',
                  create_summary_message)
 
     assert_file_equals("#{PATCHES_PATH}/expected_patch_config_1.xml", 'target/reports/diff/patch_config.xml')
@@ -99,7 +99,7 @@ def test_case_2_single_xpath_rule_changed
 
     assert_equal("This changeset changes 0 violations,\n" \
                  "introduces 0 new violations, 0 new errors and 0 new configuration errors,\n" \
-                 'removes 22 violations, 1 errors and 3 configuration errors.',
+                 'removes 22 violations, 0 errors and 3 configuration errors.',
                  create_summary_message)
 
     assert_file_equals("#{PATCHES_PATH}/expected_patch_config_2.xml", 'target/reports/diff/patch_config.xml')