update dependencies and solidity pragmas

Author: andresilva

README.md

@@ -9,3 +9,18 @@
 [coveralls-url]: https://coveralls.io/github/parity-contracts/auto-updater?branch=master
 
 Operations contracts for parity's auto-updater.
+
+## Getting started
+
+This project uses the [Truffle](http://truffleframework.com/) framework. To install the required
+dependencies run:
+
+```
+yarn install
+```
+
+To run the test suite:
+
+```
+yarn test
+```

contracts/Operations.sol

@@ -14,7 +14,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pragma solidity ^0.4.21;
+pragma solidity ^0.4.22;
 
 
 contract Operations {

contracts/OperationsProxy.sol

@@ -14,7 +14,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pragma solidity ^0.4.21;
+pragma solidity ^0.4.22;
 
 import "./Operations.sol";
 

contracts/SimpleOperations.sol

@@ -14,7 +14,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pragma solidity ^0.4.21;
+pragma solidity ^0.4.22;
 
 import "./Operations.sol";
 

package.json

@@ -26,7 +26,7 @@
     "ethereumjs-abi": "^0.6.5",
     "ganache-cli": "^6.1.0",
     "mocha-steps": "^1.1.0",
-    "solidity-coverage": "^0.4.15",
+    "solidity-coverage": "^0.5.0",
     "solium": "^1.1.6",
     "truffle": "^4.1.5"
   }