Android 2.1, 2.2 issue workaround

[andrey-shikhov]

Because method Arrays.copyOf added in android 2.3 (https://developer.android.com/reference/java/util/Arrays.html#copyOf(T[], int))
next code will fail:

Stream.of("ab","bc","ce").toArray(String[]::new);

with Exception:

java.lang.NoSuchMethodError: java.util.Arrays.copyOf at com.annimon.stream.Stream.newArray(Stream.java:1244)

This pull request contains workaround for this issue.

[coveralls]

Coverage remained the same at 100.0% when pulling 3b9a8d8 on andrey-shikhov:master into 70baa8b on aNNiMON:master.

[aNNiMON]

@andrey-shikhov one remark before I merge you pull request, use System.arraycopy(array, 0, res, 0, Math.min(res.length, array.length));

[coveralls]

Coverage remained the same at 100.0% when pulling 61afa31 on andrey-shikhov:master into 70baa8b on aNNiMON:master.

[aNNiMON]

Merged. Thanks!