Merge tag 'v2.2.0' of github.com:OpenZeppelin/openzeppelin-solidity

v2.2.0

contracts/utils/Address.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.5.2;
 
 /**
  * Utility library of inline functions on addresses

contracts/utils/Arrays.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.5.2;
 
 import "../math/Math.sol";
 
@@ -9,13 +9,13 @@ import "../math/Math.sol";
  */
 library Arrays {
     /**
-     * @dev Upper bound search function which is kind of binary search algoritm. It searches sorted
-     * array to find index of the element value. If element is found then returns it's index otherwise
-     * it returns index of first element which is grater than searched value. If searched element is
+     * @dev Upper bound search function which is kind of binary search algorithm. It searches sorted
+     * array to find index of the element value. If element is found then returns its index otherwise
+     * it returns index of first element which is greater than searched value. If searched element is
      * bigger than any array element function then returns first index after last element (i.e. all
      * values inside the array are smaller than the target). Complexity O(log n).
      * @param array The array sorted in ascending order.
-     * @param element The element's value to be find.
+     * @param element The element's value to be found.
      * @return The calculated index value. Returns 0 for empty array.
      */
     function findUpperBound(uint256[] storage array, uint256 element) internal view returns (uint256) {

contracts/utils/ReentrancyGuard.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.5.2;
 
 import "zos-lib/contracts/Initializable.sol";