checkVersionsEqual("1a", "1.0.0-a");
        checkVersionsEqual("1.0a", "1-a");
        checkVersionsEqual("1.0.0a", "1-a");
        checkVersionsEqual("1x", "1-x");
        checkVersionsEqual("1x", "1.0-x");
        checkVersionsEqual("1x", "1.0.0-x");
        checkVersionsEqual("1.0x", "1-x");
        checkVersionsEqual("1.0.0x", "1-x");
        checkVersionsEqual("1cr", "1rc");

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      |VeJuB/mpAgMBAAECggEAOlOXaYNZn1Cv+INRrR1EmVkSNEIXeX0bymohvbhka1zG
      |t/8myiMVsh7c8PYeM3kl034j4y7ixPVWW0sUoaHT3vArYo9LDtzTyj1REu6GGAJp
      |KM82/1X/jBx8jufm3SokIoIsMKbqC+ZPj+ep9dx7sxyTCE+nVSnjdL2Uyx+DDg3o
      |na237HTScWIi+tMv5QGEwqLHS2q+NZYfjgnSxNY8BRw4XZCcIZRko9niuB5gUjj/
      |y01HwvOCWuOMaSKZak1OdOaz3427/TkhYIqf6ft0ELF+ASRk3BLQA06pRt88H3u2

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be stretched\n  // when setting a width and height attribute on the img element.\n  height: auto;\n}\n\n\n// Retina image\n//\n// Short retina mixin for setting background-image and -size.\n\n@mixin img-retina($file-1x, $file-2x, $width-1x, $height-1x) {\n  background-image: url($file-1x);\n\n  // Autoprefixer takes care of adding -webkit-min-device-pixel-ratio and -o-min-device-pixel-ratio,\n  // but doesn't convert dppx=>dpi.\n  // There's no such thing as unprefixed min-device-pixel-ratio since...

be stretched\n  // when setting a width and height attribute on the img element.\n  height: auto;\n}\n\n\n// Retina image\n//\n// Short retina mixin for setting background-image and -size.\n\n@mixin img-retina($file-1x, $file-2x, $width-1x, $height-1x) {\n  background-image: url($file-1x);\n\n  // Autoprefixer takes care of adding -webkit-min-device-pixel-ratio and -o-min-device-pixel-ratio,\n  // but doesn't convert dppx=>dpi.\n  // There's no such thing as unprefixed min-device-pixel-ratio since...