Merge branch 'hotfix/1.5.1' into develop
set 'Rotation' to 0 in exif (with option to keep original value)
fix typo ; to ,
set 'Orientation' to 'Horizontal (normal)'
write updated exif data
add fix_orientation.pl to change all images in a dir to horizontal
add usage and get options
Merge branch 'feature/reset_rotation' into develop
fix typo in usage
Merge branch 'release/1.6'