Before make ModbusLib-submodule

Author: serhmarch

.gitmodules

@@ -15,4 +15,16 @@
 
 # 0.1.4
 
-* Fixed bug
+* Fixed bug
+
+# 0.1.5
+
+* Fix 'String'-format of data view item displaying
+
+# 0.2.0
+
+* Make ModbusTools available for older version of Qt framework:
+  starting with version 0.2.0 ModbusTools support Qt 5.8 version or later
+* Add ModbusLib submodule project. It non-Qt project working with TCP sockets and serial port
+  for Modbus protocol. It deletes dependencies to Qt5Network and Qt5SerialPort libs.
+* Fix server action (simulation) edit bugs