Log Message:
Updated p5-GD to 2.66.

2.66    * throw proper error on newFrom* with not-existing file
        * add t/transp.t from RT #40525
        * Improve RT #54366 multiple gd.h warning
        * better doc for GD::Simple->arc
        * fix ANIMGIF with libgd 2.3.0-dev
2.65    * fix --gdlib_config_path to accept an argument (fperrad)
2.64    * Update doc for LIBGD_VERSION()
        * Fix 5.6.2, which does not have float in its typemap
2.63    * renamed VERSION() to LIBGD_VERSION(), RT #121307.
          It was treated magically by "use GD 2.18"
2.62    * fixed wrong <5.14 code generated with ExtUtils::Constants
          RT #121297. Don't generate const-xs.inc, only when missing.
        * add -liconv on hpux also (our pkgconfig parser cannot handle it)
2.61    * add CONFIGURE_REQUIRES META
        * add --gdlib_config_path
        * add Image Filters: scatter, pixelate, negate, grayscale, brightness,
          contrast, color, selectiveBlur, edgeDetectQuick, gaussianBlur, emboss,
          meanRemoval, smooth, copyGaussianBlurred
        * add palette methods: createPaletteFromTrueColor,
          neuQuant (but discouraged), colorMatch.
        * add interpolation methods: copyScale, copyRotateInterpolated,
          interpolationMethod.
        * add double GD::VERSION
        * add all gd.h constants
2.60    * add missing methods newFromWBMP, newFromXbm,
          (RT #68784) and some missing docs
        * Add --lib_fontconfig_path, --fcgi options
        * rewrote most of the XS code
        * cleanup Makefile.PL #20
2.59    * error on failing libgd calls
        * fix colorClosestAlpha, colorAllocateAlpha
        * add missing documentation
2.58    * fix VERSION_STRING for 2.0.x
        * honor --lib_gd_path specific gdlib-config
        * Loosen the comparison tests with GDIMAGETYPE ne gd2
        * Improve gdlib-config parsing (PR #17), esp. with 2.0.34
2.57    * fix Jpeg magic number detection RT #26146
        * fix RGB - HSV roundtrips: RT #120572 by J2N-FORGET
        * fix -print-search-dirs errors RT #106265
        * co-maint to rurban
        * add hv_fetchs, CI smokers
        * add GD::VERSION_STRING api
2.56_03 * add alpha method
        * improve option handling
        * fix meta data
2.56_02 * fix feature extraction >= 2.2 [RT #119459]
2.56_01 * rm Build.PL, fix permissions, fix for missing gdlib-config