Added "runtime.py", a file that is executed in python thread in runtime, before handling python_eval FBs requests. Added small python editor taken from wxPython demo, and appropriate icon and button to launch it.
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<CFile xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.w3.org/2001/XMLSchema" xsi:schemaLocation="cext_xsd.xsd">
<includes>
<![CDATA[]]>
</includes>
<variables/>
<globals>
<![CDATA[]]>
</globals>
<initFunction>
<![CDATA[]]>
</initFunction>
<cleanUpFunction>
<![CDATA[]]>
</cleanUpFunction>
<retrieveFunction>
<![CDATA[]]>
</retrieveFunction>
<publishFunction>
<![CDATA[]]>
</publishFunction>
</CFile>