fix for #399 (#407)

* fix for #399

* updating travis

* added without release back in

* added no debug to get around llvm issue

.travis.yml

@@ -2,6 +2,11 @@ language: crystal
 crystal:
   - latest
   - nightly
+
+script:
+  - crystal spec
+  - crystal spec --release --no-debug
+
 matrix:
   allow_failures:
     - crystal: nightly

src/kemal.cr

@@ -8,11 +8,15 @@ require "./kemal/helpers/*"
 
 module Kemal
   # Overload of self.run with the default startup logging
-  def self.run(port : Int32? = nil)
+  def self.run(port : Int32?)
     self.run port do
       log "[#{config.env}] Kemal is ready to lead at #{config.scheme}://#{config.host_binding}:#{config.port}"
     end
   end
+  # Overload of self.run without port - fixex #399
+  def self.run 
+    self.run(nil)
+  end
 
   # Overload of self.run to allow just a block
   def self.run(&block)