Use key_type column for cert get/rotate/reissue/display

Added unit tests

lemur/static/app/angular/certificates/certificate/certificate.js

@@ -251,10 +251,13 @@ angular.module('lemur')
     $scope.certificate.csr = null;  // should not clone CSR in case other settings are changed in clone
     $scope.certificate.validityStart = null;
     $scope.certificate.validityEnd = null;
-    $scope.certificate.keyType = 'RSA2048'; // default algo to show during clone
     $scope.certificate.description = 'Cloning from cert ID ' + editId;
     $scope.certificate.replacedBy = []; // should not clone 'replaced by' info
     $scope.certificate.removeReplaces(); // should not clone 'replacement cert' info
+
+    if(!$scope.certificate.keyType) {
+      $scope.certificate.keyType = 'RSA2048'; // default algo to show during clone if backend did not return algo
+    }
     CertificateService.getDefaults($scope.certificate);
   });
 

lemur/static/app/angular/certificates/view/view.tpl.html

@@ -111,6 +111,8 @@
                     <div class="list-group-item">
                       <dt>Key Length</dt>
                       <dd>{{ certificate.bits }}</dd>
+                      <dt>Key Type</dt>
+                      <dd>{{ certificate.keyType }}</dd>
                       <dt>Signing Algorithm</dt>
                       <dd>{{ certificate.signingAlgorithm }}</dd>
                     </div>