gch v1.21

• remove upper in the repository title declaration in initialize()

gch v1.20

• Version info without executing PyInstaller etc.

gch v1.19

Fix argument parsing.

gch v1.18

remove unnecessary output.

gch v1.17

Argument parsing is fixed.

gch v1.16

Improve --version info.
Remove unnecessary logging inside main() of gch.

gch v1.15

Fix argument parsing.

gch v1.14

Minor update on issues.abort()

gch v1.13

Proper error handling

gch v1.12

• Eliminate click completely.
• --version info redefined.