Update Truffle and Solium (#1105)

* fixed visibility warnings

* solved visibility and line length warning

* change a test assertion that fails due to chai dependence update

* linter, constructor style and solved visibility warnings

* Changed Windows line endings to Unix.

contracts/access/rbac/Roles.sol

@@ -35,8 +35,8 @@ library Roles {
    * // reverts
    */
   function check(Role storage _role, address _addr)
-    view
     internal
+    view
   {
     require(has(_role, _addr));
   }
@@ -46,8 +46,8 @@ library Roles {
    * @return bool
    */
   function has(Role storage _role, address _addr)
-    view
     internal
+    view
     returns (bool)
   {
     return _role.bearer[_addr];