
here are the procedures to release a new version, in case of I forget something when doing release.

1. update version number in source code (.cpp file and .rc file)
2. update CHANGELOG
3. update translation files
4. commit all changes in source code
5. build binary
6. test
7. clean temporary file
8. pack files(including binary, skin, qt library, utilities folder, vcredist library, python library, ssl library) to zip and 7z
9. draft release on github
