use TLS instead of SSL

Author: tmasternak

src/ServicePulse.Host/app/css/particular.css

@@ -1257,7 +1257,7 @@ input#immediatelyRetry {
     visibility: visible;
 }
 
-input#enableSSL {
+input#enableTLS {
     visibility: visible;
 }
 

src/ServicePulse.Host/app/modules/configuration/views/notificationsemailmodal.html

@@ -31,9 +31,9 @@ <h3 class="modal-title">Email configuration</h3>
             </div>
             <div class="row"></div>
             <div class="form-group">
-                <input type="checkbox" id="enableSSL" name="enableSSL"
-                    ng-model="settings.enable_ssl" class="check-label" />
-                <label for="enableSSL">Use SSL</label>
+                <input type="checkbox" id="enableTLS" name="enableTLS"
+                    ng-model="settings.enable_tls" class="check-label" />
+                <label for="enableTLS">Use TLS</label>
             </div>
             <div class="row"></div>
             <div class="form-group" ng-class="{'has-error': notificationsForm.from.$invalid}">