fix: Upgrade remaining non-javascript like types

To be referenced in same way.
Simplify FunctionNode.
Update documentation to be more straightforward.
Remove code no longer needed from WebGL2 FunctionNode.

Author: robertleeplummerjr

README.md

@@ -167,6 +167,72 @@ const myFunc = gpu.createKernel(function() {
 myFunc();
 // Result: [0, 1, 2, 3, ... 99]
 ```
+
+### Declaring variables
+
+GPU.js makes variable declaration inside kernel functions easy.  Variable types supported are:
+Numbers
+Array(2)
+Array(3)
+Array(4)
+
+Numbers example:
+```js
+ const myFunc = gpu.createKernel(function() {
+     const i = 1;
+     const j = 0.89;
+     return i + j;
+ }).setOutput([100]);
+```
+
+Array(2) examples:
+Using declaration 
+```js
+ const myFunc = gpu.createKernel(function() {
+     const array2 = [0.08, 2];
+     return array2;
+ }).setOutput([100]);
+```
+
+Directly returned
+```js
+ const myFunc = gpu.createKernel(function() {
+     return [0.08, 2];
+ }).setOutput([100]);
+```
+
+Array(3) example:
+Using declaration 
+```js
+ const myFunc = gpu.createKernel(function() {
+     const array2 = [0.08, 2, 0.1];
+     return array2;
+ }).setOutput([100]);
+```
+
+Directly returned
+```js
+ const myFunc = gpu.createKernel(function() {
+     return [0.08, 2, 0.1];
+ }).setOutput([100]);
+```
+
+Array(4) example:
+Using declaration 
+```js
+ const myFunc = gpu.createKernel(function() {
+     const array2 = [0.08, 2, 0.1, 3];
+     return array2;
+ }).setOutput([100]);
+```
+
+Directly returned
+```js
+ const myFunc = gpu.createKernel(function() {
+     return [0.08, 2, 0.1, 3];
+ }).setOutput([100]);
+```
+
 ## Accepting Input
 ### Supported Input Types
 * Numbers
@@ -368,15 +434,16 @@ To strongly type a function you may use options.  Options take an optional hash
 `returnType`: optional, defaults to float, the value you'd like to return from the function
 `paramTypes`: optional, defaults to float for each param, a hash of param names with values of the return types
 
-Types: that may be used for `returnType` or for each property of `paramTypes`: 
+Types: that may be used for `returnType` or for each property of `paramTypes`:
 'Array'
 'Array(2)'
 'Array(3)'
 'Array(4)'
-'Integer'
 'HTMLImage'
 'HTMLImageArray'
 'Number'
+'NumberTexture'
+'ArrayTexture(4)'
 
 Example:
 ```js

bin/gpu-core.js

@@ -5,7 +5,7 @@
  * GPU Accelerated JavaScript
  *
  * @version 1.10.0
- * @date Sun Oct 28 2018 13:54:33 GMT-0400 (EDT)
+ * @date Tue Oct 30 2018 07:33:44 GMT-0600 (MDT)
  *
  * @license MIT
  * The MIT License