* Fixed numerous memory leaks.
* Maximum valid hour is 23, not 24, in the PNG tIME chunk, and maximum
valid minute is 59, not 60.
* Use signed integer arithmetic to calculate timezone corrections.
- builds for sle11
- builds for sle12
OBS-URL: https://build.opensuse.org/package/show/graphics/ImageMagick?expand=0&rev=302
