v. 2.3: Add auto disconnect function
v. 2.0: Add start time
v. 1.2: Add alert setting
v. 1.1: Fix 2.x and 3.x crash
v. 1.0.26. Add data counter limit alert
v. 1.0.23: Add data counter function
v. 1.0.18: Power saving improvement
v. 1.0.16: Support 2.2 and 2.3
v. 1.0.11: Add network statistic function
v. 1.0.3: Improve performance
v. 1.0.1: Initial release