Remove "halo" from help text #125 (#126)

Author: oshiryaeva

src/main/kotlin/com/haulmont/cuba/cli/cubaplugin/theme/ThemeExtensionCommand.kt

@@ -34,7 +34,7 @@ import java.io.PrintWriter
 import java.nio.file.Files
 import java.util.stream.Collectors
 
-@Parameters(commandDescription = "Generates Halo theme extension")
+@Parameters(commandDescription = "Generates theme extension")
 class ThemeExtensionCommand : GeneratorCommand<ThemeExtensionModel>() {
     private val messages by localMessages()