Mod v0.4.20
1.Fix: JSON formatter convert Unicode chars to UTF8 chars #309
2.Fix global-buffer-overflow due EUCTW_TABLE_SIZE
3.Crashing sequence with nsSJISProber
4.Input size could not decrease the size of Input control
5.Fix compiling issue under wx 3.1.4
6.Fix bug that caused file type detect wrongly
7.Fix Linux build issue with wxWidgets < 3.1.1
8.Update Python to 2.7.18
9.Fix langurage ID of wxWidgets
10.Update wxWidgets to 3.2.2.1
11.Don't create new file by double clicking file title tab
12.Fix VS compiling issue(snprintf)
13.Fix High DPI awareness issue