Merge pull request Azure#8656 from vladimir-shcherbakov/release-2019-02-28-SQL

[release-2019-02-28-SQL] version and metadata update

Author: cormacpayne

tools/Az/Az.psd1

@@ -93,7 +93,7 @@ RequiredModules = @(@{ModuleName = 'Az.Accounts'; ModuleVersion = '1.3.0'; },
                @{ModuleName = 'Az.ServiceBus'; RequiredVersion = '1.0.0'; }, 
                @{ModuleName = 'Az.ServiceFabric'; RequiredVersion = '1.0.1'; }, 
                @{ModuleName = 'Az.SignalR'; RequiredVersion = '1.0.2'; }, 
-               @{ModuleName = 'Az.Sql'; RequiredVersion = '1.3.0'; }, 
+               @{ModuleName = 'Az.Sql'; RequiredVersion = '1.4.0'; }, 
                @{ModuleName = 'Az.Storage'; RequiredVersion = '1.0.2'; }, 
                @{ModuleName = 'Az.StreamAnalytics'; RequiredVersion = '1.0.0'; }, 
                @{ModuleName = 'Az.TrafficManager'; RequiredVersion = '1.0.1'; },