Added the project's files to the repo

assets/sass/bourbon/functions/_assign.scss

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+@function assign-inputs($inputs, $pseudo: null) {
+  $list : ();
+
+  @each $input in $inputs {
+    $input: unquote($input);
+    $input: if($pseudo, $input + ":" + $pseudo, $input);
+    $list: append($list, $input, comma);
+  }
+
+  @return $list;
+}

assets/sass/bourbon/functions/_color-lightness.scss

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+// Programatically determines whether a color is light or dark
+// Returns a boolean
+// More details here http://robots.thoughtbot.com/closer-look-color-lightness
+
+@function is-light($hex-color) {
+  $-local-red: red(rgba($hex-color, 1.0));
+  $-local-green: green(rgba($hex-color, 1.0));
+  $-local-blue: blue(rgba($hex-color, 1.0));
+
+  $-local-lightness: ($-local-red * 0.2126 + $-local-green * 0.7152 + $-local-blue * 0.0722) / 255;
+
+  @return $-local-lightness > .6;
+}

assets/sass/bourbon/functions/_contains.scss

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+// Test a Sass list to see if it contains a defined value
+// Allows for checking if a list contains several values at once
+
+@function contains($list, $values...) {
+  @each $value in $values {
+    @if type-of(index($list, $value)) != "number" {
+      @return false;
+    }
+  }
+
+  @return true;
+}

assets/sass/bourbon/functions/_is-length.scss

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+// Check for a valid length
+
+@function is-length($value) {
+  @return type-of($value) != "null" and (str-slice($value + "", 1, 4) == 'calc'
+       or index(auto inherit initial 0, $value)
+       or (type-of($value) == "number" and not(unitless($value))));
+}

assets/sass/bourbon/functions/_is-size.scss

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+// Check for a valid size
+
+@function is-size($value) {
+  @return is-length($value)
+          or contains("fill" "fit-content" "min-content" "max-content", $value);
+}

assets/sass/bourbon/functions/_modular-scale.scss

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+// Scaling Variables
+$golden:           1.618;
+$minor-second:     1.067;
+$major-second:     1.125;
+$minor-third:      1.2;
+$major-third:      1.25;
+$perfect-fourth:   1.333;
+$augmented-fourth: 1.414;
+$perfect-fifth:    1.5;
+$minor-sixth:      1.6;
+$major-sixth:      1.667;
+$minor-seventh:    1.778;
+$major-seventh:    1.875;
+$octave:           2;
+$major-tenth:      2.5;
+$major-eleventh:   2.667;
+$major-twelfth:    3;
+$double-octave:    4;
+
+$modular-scale-ratio: $perfect-fourth !default;
+$modular-scale-base: em($em-base) !default;
+
+@function modular-scale($increment, $value: $modular-scale-base, $ratio: $modular-scale-ratio) {
+  $v1: nth($value, 1);
+  $v2: nth($value, length($value));
+  $value: $v1;
+
+  // scale $v2 to just above $v1
+  @while $v2 > $v1 {
+    $v2: ($v2 / $ratio); // will be off-by-1
+  }
+  @while $v2 < $v1 {
+    $v2: ($v2 * $ratio); // will fix off-by-1
+  }
+
+  // check AFTER scaling $v2 to prevent double-counting corner-case
+  $double-stranded: $v2 > $v1;
+
+  @if $increment > 0 {
+    @for $i from 1 through $increment {
+      @if $double-stranded and ($v1 * $ratio) > $v2 {
+        $value: $v2;
+        $v2: ($v2 * $ratio);
+      } @else {
+        $v1: ($v1 * $ratio);
+        $value: $v1;
+      }
+    }
+  }
+
+  @if $increment < 0 {
+    // adjust $v2 to just below $v1
+    @if $double-stranded {
+      $v2: ($v2 / $ratio);
+    }
+
+    @for $i from $increment through -1 {
+      @if $double-stranded and ($v1 / $ratio) < $v2 {
+        $value: $v2;
+        $v2: ($v2 / $ratio);
+      } @else {
+        $v1: ($v1 / $ratio);
+        $value: $v1;
+      }
+    }
+  }
+
+  @return $value;
+}

assets/sass/bourbon/functions/_px-to-em.scss

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+// Convert pixels to ems
+// eg. for a relational value of 12px write em(12) when the parent is 16px
+// if the parent is another value say 24px write em(12, 24)
+
+@function em($pxval, $base: $em-base) {
+  @if not unitless($pxval) {
+      $pxval: strip-units($pxval);
+  }
+  @if not unitless($base) {
+      $base: strip-units($base);
+  }
+  @return ($pxval / $base) * 1em;
+}

assets/sass/bourbon/functions/_px-to-rem.scss

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+// Convert pixels to rems
+// eg. for a relational value of 12px write rem(12)
+// Assumes $em-base is the font-size of <html>
+
+@function rem($pxval) {
+  @if not unitless($pxval) {
+      $pxval: strip-units($pxval);
+  }
+
+  $base: $em-base;
+  @if not unitless($base) {
+      $base: strip-units($base);
+  }
+  @return ($pxval / $base) * 1rem;
+}

assets/sass/bourbon/functions/_strip-units.scss

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+// Srtips the units from a value. e.g. 12px -> 12
+
+@function strip-units($val) {
+  @return ($val / ($val * 0 + 1));
+}

assets/sass/bourbon/functions/_tint-shade.scss

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+// Add percentage of white to a color
+@function tint($color, $percent){
+  @return mix(white, $color, $percent);
+}
+
+// Add percentage of black to a color
+@function shade($color, $percent){
+  @return mix(black, $color, $percent);
+}

assets/sass/bourbon/functions/_transition-property-name.scss

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+// Return vendor-prefixed property names if appropriate
+// Example: transition-property-names((transform, color, background), moz) -> -moz-transform, color, background
+//************************************************************************//
+@function transition-property-names($props, $vendor: false) {
+	$new-props: ();
+	
+	@each $prop in $props {
+		$new-props: append($new-props, transition-property-name($prop, $vendor), comma);
+	}
+
+	@return $new-props;
+}
+
+@function transition-property-name($prop, $vendor: false) {
+	// put other properties that need to be prefixed here aswell
+	@if $vendor and $prop == transform {
+		@return unquote('-'+$vendor+'-'+$prop);
+	}
+	@else {
+		@return $prop;
+	}
+}

assets/sass/bourbon/functions/_unpack.scss

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+// Convert shorthand to the 4-value syntax
+
+@function unpack($shorthand) {
+  @if length($shorthand) == 1 {
+    @return nth($shorthand, 1) nth($shorthand, 1) nth($shorthand, 1) nth($shorthand, 1);
+  }
+  @else if length($shorthand) == 2 {
+    @return nth($shorthand, 1) nth($shorthand, 2) nth($shorthand, 1) nth($shorthand, 2);
+  }
+  @else if length($shorthand) == 3 {
+    @return nth($shorthand, 1) nth($shorthand, 2) nth($shorthand, 3) nth($shorthand, 2);
+  }
+  @else {
+    @return $shorthand;
+  }
+}
+