keyboard & touch navigation, configurable settings, and refactor

- keyboard support: arrow keys or `hjkl` to move cursor, Space to start
  selection, Enter to confirm, Escape to cancel
- configurable settings: word placement directions, grid size, cell
  size, colors, fonts, debug mode, and more via `GameSettings`
- modernize CSS (logical properties, grid layout) and HTML semantics
- refactor JavaScript code around single-responsibility principles

1 files changed, 0 insertions, 32 deletions

diff --git a/js/utility.js b/js/utility.js
deleted file mode 100644
index fe1d0f1..0000000
--- a/js/utility.js
+++ /dev/null
@@ -1,32 +0,0 @@
-/**
- * Returns a random integer between min and max
- *
- * @param {Number} min
- * @param {Number} max
- * @return {Number}
- */
-if (typeof Math.rangeInt != 'function') {
-  Math.rangeInt = function(min, max){
-  	if (max == undefined) {
-  		max = min;
-  		min = 0;
-  	}
-  	return Math.floor(Math.random() * (max - min + 1)) + min;
-  }
-}
-
-/**
- * Mege two objects
- *
- * @param {Object} o1 Object 1
- * @param {Object} o2 Object 2
- * @return {Object}
- */
-if (typeof Object.merge != 'function') {
-  Object.merge = function(o1, o2) {
-    for (var i in o1) {
-      o2[i] = o1[i];
-    }
-    return o2;
-  }
-}