Revert back to using libary for setting default mysql port.

Author: patcon

attributes/default.rb

@@ -187,12 +187,14 @@
 default['stash']['database']['version']  = '5.6'
 
 default['stash']['database']['host']     = '127.0.0.1'
-default['stash']['database']['port']     = '3306'
 default['stash']['database']['name']     = 'stash'
 default['stash']['database']['password'] = 'changeit'
 default['stash']['database']['testInterval'] = 2
 default['stash']['database']['user']     = 'stash'
 
+# See `libraries/stash.rb` for code to set actual default port
+default['stash']['database']['port']     =  nil
+
 default['stash']['jvm']['minimum_memory']  = '512m'
 default['stash']['jvm']['maximum_memory']  = '768m'
 default['stash']['jvm']['maximum_permgen'] = '384m'