This commit fixes Issue #5

Added in support for arrays of primitive types.

Output with this patch:
```
java> int[] arr = new int[5]
int[] arr = [0, 0, 0, 0, 0]

java> int[][] nested = new int[5][]
int[][] nested = [null, null, null, null, null]

java> nested[0] = new int[5]
int[] res2 = [0, 0, 0, 0, 0]

java> nested
int[][] res3 = [[0, 0, 0, 0, 0], null, null, null, null]

java> boolean[] bools = new boolean[5]
boolean[] bools = [false, false, false, false, false]
```