beremiz

fix bug with indelible values in some 'optional' fields in project properties panel

2018-02-19, Surkov Sergey
38e912c8bd31
fix bug with indelible values in some 'optional' fields in project properties panel

only 'required' fields should be indelible
<?xml version='1.0' encoding='utf-8'?>
<BaseParams xmlns:xsd="http://www.w3.org/2001/XMLSchema" IEC_Channel="2" Name="py_ext_0"/>