beta 3 (#3780)

* merge master - allow to upload twig invoice templates via UI
* support adding existing teams with same name
* permissions cannot be set right after role was created - fixes #3777
* allow to deactivate unique customer number validation - fixes #3762 
* invalid message when trying to edit locked or exported timesheets in calendar - fixes #3766
* updated icons and manifest - fixes #3761

src/DependencyInjection/Configuration.php

@@ -322,6 +322,9 @@ final class Configuration implements ConfigurationInterface
                 ->scalarNode('number_format')
                     ->defaultValue('{Y}/{cy,3}')
                 ->end()
+                ->booleanNode('upload_twig')
+                    ->defaultTrue()
+                ->end()
             ->end()
         ;
 
@@ -531,6 +534,14 @@ final class Configuration implements ConfigurationInterface
                 ->scalarNode('number_format')
                     ->defaultValue('{cc,4}')
                 ->end()
+                ->arrayNode('rules')
+                    ->addDefaultsIfNotSet()
+                    ->children()
+                        ->booleanNode('allow_duplicate_number')
+                            ->defaultFalse()
+                        ->end()
+                    ->end()
+                ->end()
             ->end()
         ;