message: fixed abi_tests
diff: @@ -713,11 +713,11 @@ BOOST_FIXTURE_TEST_CASE(abigen_double_action, abi_gen_helper)
  "actions": [{
  "name" : "action1",
  "type" : "C",
  - "ricardian_contract" : "ricardian"
  + "ricardian_contract" : ""
  },{
  "name" : "action2",
  "type" : "C",
  - "ricardian_contract" : "ricardian"
  + "ricardian_contract" : ""
  }],
  "tables": []
  }
  @@ -1216,7 +1216,7 @@ BOOST_FIXTURE_TEST_CASE(abigen_action_and_table, abi_gen_helper)
  "actions": [{
  "name" : "tableaction",
  "type" : "table_action",
  - "ricardian_contract" : "ricardian"
  + "ricardian_contract" : ""
  }],
  "tables": [
  {
  @@ -1290,7 +1290,7 @@ BOOST_FIXTURE_TEST_CASE(abigen_simple_typedef, abi_gen_helper)
  "actions": [{
  "name" : "mainaction",
  "type" : "main_action",
  - "ricardian_contract" : "ricardian"
  + "ricardian_contract" : ""
  }],
  "tables": []
  }
  @@ -1606,7 +1606,7 @@ BOOST_FIXTURE_TEST_CASE(abgigen_vector_alias, abi_gen_helper)
  "actions": [{
  "name": "myaction",
  "type": "my_action",
  - "ricardian_contract": "ricardian"
  + "ricardian_contract": ""
  }
  ],
  "tables": []
  