Added miniboxing plugin and eclipse

Crappy results:

without miniboxing:
```
[info] Benchmark                                        Mode  Samples    Score  Score error  Units
[info] b.StreamsBenchmarks.baseline_cart                avgt        5    4.950        0.148  ms/op
[info] b.StreamsBenchmarks.baseline_ref                 avgt        5   25.920        1.937  ms/op
[info] b.StreamsBenchmarks.baseline_sum                 avgt        5    5.588        1.298  ms/op
[info] b.StreamsBenchmarks.baseline_sumOfSquares        avgt        5    5.718        0.326  ms/op
[info] b.StreamsBenchmarks.baseline_sumOfSquaresEven    avgt        5   12.278        0.337  ms/op

[info] b.StreamsBenchmarks.streams_cart                 avgt        5  220.633       10.769  ms/op
[info] b.StreamsBenchmarks.streams_ref                  avgt        5   64.462        5.952  ms/op
[info] b.StreamsBenchmarks.streams_sum                  avgt        5  100.561        3.557  ms/op
[info] b.StreamsBenchmarks.streams_sumOfSquares         avgt        5  188.298        9.779  ms/op
[info] b.StreamsBenchmarks.streams_sumOfSquaresEven     avgt        5  130.831        7.915  ms/op

[info] b.StreamsBenchmarks.views_cart                   avgt        5  179.876       10.624  ms/op
[info] b.StreamsBenchmarks.views_ref                    avgt        5  129.491        5.355  ms/op
[info] b.StreamsBenchmarks.views_sum                    avgt        5   77.413        3.478  ms/op
[info] b.StreamsBenchmarks.views_sumOfSquares           avgt        5  130.682        9.649  ms/op
[info] b.StreamsBenchmarks.views_sumOfSquaresEven       avgt        5  131.482       15.478  ms/op
```

with miniboxing:
```
[info] Benchmark                                        Mode  Samples    Score  Score error  Units
[info] b.StreamsBenchmarks.baseline_cart                avgt        5    4.942        0.067  ms/op
[info] b.StreamsBenchmarks.baseline_ref                 avgt        5   26.268        4.004  ms/op
[info] b.StreamsBenchmarks.baseline_sum                 avgt        5    5.245        0.188  ms/op
[info] b.StreamsBenchmarks.baseline_sumOfSquares        avgt        5    5.792        0.469  ms/op
[info] b.StreamsBenchmarks.baseline_sumOfSquaresEven    avgt        5   12.450        1.546  ms/op

[info] b.StreamsBenchmarks.streams_cart                 avgt        5  560.213       23.507  ms/op
[info] b.StreamsBenchmarks.streams_ref                  avgt        5  114.461       11.805  ms/op
[info] b.StreamsBenchmarks.streams_sum                  avgt        5  355.919      140.349  ms/op
[info] b.StreamsBenchmarks.streams_sumOfSquares         avgt        5  450.992       31.246  ms/op
[info] b.StreamsBenchmarks.streams_sumOfSquaresEven     avgt        5  300.427       43.995  ms/op

[info] b.StreamsBenchmarks.views_cart                   avgt        5  192.261       14.556  ms/op
[info] b.StreamsBenchmarks.views_ref                    avgt        5  130.408        6.394  ms/op
[info] b.StreamsBenchmarks.views_sum                    avgt        5   80.515        1.919  ms/op
[info] b.StreamsBenchmarks.views_sumOfSquares           avgt        5  136.543       13.828  ms/op
[info] b.StreamsBenchmarks.views_sumOfSquaresEven       avgt        5  134.890       11.061  ms/op
```
More tweaking
Warning