1.7

• Fixed: free memory image and font resources.
• Fixed: segfault if mouse cursor image was not obtained.
• Improvement option: --stack, add an optional join direction (v/h).
• New option: --file (-F), provide the filename as an option.
• New option: --ignorekeyboard (-i), Don't exit for keyboard input. ESC still exits.
• New option: --select=hole (-shole), hole selection area.
• New option: --select=hide (-shide), hide selection area, support image.
• New option: --select=blur (-sblur), blur selection area.
• New option: (-) add redirection to standard output (format PNG).
• Using libbsd from now.
• Several improvements over the source code and documentation.

Special thanks to @a1346054, @c0dev0id, Daniel T. Borelli (@daltomi), Guilherme Janczak (@guijan), IFo Hancroft (@ifohancroft), Peter Wu (@peterwu) and Wilson Smith (@0wsmith)