Nintex workflow menu not visible in site actions

It was resolved by following:
The following entries were missing and I added them manually and the world got peace!

   1:  <SafeControl Assembly="Nintex.Workflow.ProjectServer, Version=1.0.0.0, Culture=neutral, PublicKeyToken=913f6bae0ca5ae12" Namespace="Nintex.Workflow.ProjectServer.ServerControls" TypeName="*" Safe="True" SafeAgainstScript="False" />

   2:  <SafeControl Assembly="Nintex.Workflow.ServerControls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=913f6bae0ca5ae12" Namespace="Nintex.Workflow.ServerControls" TypeName="*" Safe="True" />

   3:  <SafeControl Assembly="Nintex.Workflow.ServerControls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=913f6bae0ca5ae12" Namespace="Nintex.Workflow.ServerControls.WebParts" TypeName="*" Safe="True" />

Solution is taken from here: http://connect.nintex.com/forums/thread/21125.aspx

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