zima 0.5.1

Improvements:

• In order to combat the issue of border halfchars forming around images, new aspect ratio preservation modes have been
  added as follows:
  • Snap to char (new default) - rounds width/height to the nearest character.
  • Snap to center - rounds width/height to the nearest character which allows the image to be centered.
• The aspect ratio preservation mode is now saved as part of the profile.
• The window title now displays the program version.

Bugs fixed:

• The window pane showing scroll bars when unnecessary on some platforms has been fixed.
• The correct program version is now displayed (regression in 0.4.2+).