- remove GDGraph-trim_miter.diff as still not upstream

- updated to 1.54
see /usr/share/doc/packages/perl-GDGraph/CHANGES
1.54 21 Nov 2016

- Disable two Y axes alignment when any y[12]_{min,max}_value is defined
RT#62665

- updated to 1.53
see /usr/share/doc/packages/perl-GDGraph/CHANGES
1.53 08 Jul 2016

- Fix 'Illegal division by zero' when x_min_value and x_max_value
are defined and x_tick_number set to 'auto' RT#73185
Thanks to Bob Rogers, https://github.com/ruz/GDGraph/pull/12

- updated to 1.52
see /usr/share/doc/packages/perl-GDGraph/CHANGES
1.52 28 Jan 2016

- y1_min_range and y2_min_range instead of min_range_1 and min_range_2,
niether were documented before.
- Update documentation in regards to all *_min_range options available.

- updated to 1.51
see /usr/share/doc/packages/perl-GDGraph/CHANGES

- updated to 1.49
see /usr/share/doc/packages/perl-GDGraph/CHANGES