Add dokka plugin to generate documentation.

build.gradle

@@ -1,6 +1,22 @@
+buildscript {
+    ext.kotlin_version = '1.1.3'
+    ext.dokka_version = '0.9.15'
+
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "org.jetbrains.dokka:dokka-gradle-plugin:$dokka_version"
+    }
+}
+
 subprojects {
 
     apply plugin: 'java'
+    apply plugin: 'kotlin'
+    apply plugin: 'org.jetbrains.dokka'
 
     repositories {
         mavenCentral()

core/build.gradle

@@ -1,7 +1,3 @@
-plugins {
-    id 'org.jetbrains.kotlin.jvm' version '1.1.3'
-}
-
 dependencies {
     compile 'com.moandjiezana.toml:toml4j:0.7.1'
     testCompile 'junit:junit:4.12'

core/src/main/java/org/nwapw/abacus/function/DocumentationType.java

@@ -1,5 +1,9 @@
 package org.nwapw.abacus.function;
 
+/**
+ * Enum that holds the type of documentation that has been
+ * registered with Abacus.
+ */
 public enum DocumentationType {
 
     FUNCTION

docs/_layouts/home.html

@@ -13,6 +13,8 @@
 
   img {
     margin: auto;
+    width: 100%;
+    max-width: 432px;
   }
 
   div#buttons {

docs/_pages/about.md

@@ -5,6 +5,23 @@ title: About
 permalink: /about/
 ---
 
-Welcome to the Abacus project website.
-This website is currently under construction, please, check
-back later.
+## So... what IS Abacus?
+It's a calculator. Obviously. But what makes it better than
+what already exists? There's a few things. Abacus is:
+* Programmable, and not in TI Basic.
+* Precise. With the "precise" option, Abacus can keep up to 50 significant figures.
+* Capable. Ever wonder what 2<sup>700</sup> is? How about 8!!? Abacus can tell you!
+* Offline. While Wolfram Alpha can do powerful math, it needs internet connection!
+* Built for the desktop. Why use buttons on the screen when there's buttons on the keyboard?
+* Open source. Don't like something? Help is always welcome!
+
+## Why was Abacus made?
+The initial project was proposed for the [Northwest Advanced Programming Workshop](http://nwapw.org/about/).
+You can read the project proposal on the main GitHub page, although the idea has
+changed quite a bit, mostly in shifting from "fast" to "precise".
+
+## What is Abacus made with?
+Java and Kotlin. Java provides a good layer of abstraction and a great standard
+library, while Kotlin allows for the reduction of boilerplate code and null
+safety. Using JVM-based languages also allows Abacus to expose its entire
+API to plugins, and load them at runtime.

docs/assets/css/main.scss

@@ -16,6 +16,7 @@ a {
   color: $background-color;
 
   &.button {
+    display: inline-block;
     background-color: $background-color;
     color: $clear-color;
     padding: 10px;

fx/build.gradle

@@ -1,6 +1,3 @@
-plugins {
-    id 'org.jetbrains.kotlin.jvm' version '1.1.3'
-}
 apply plugin: 'application'
 
 dependencies {