upgrade luke to use Lucene 5.5.0

[shengc]

I tried to build current Master with Lucene 5.5.0, but ended up with error,

[error] luke/cast to Object for a varargs call
[error]   cast to Object[] for a non-varargs call and to suppress this warning
[error] luke/src/main/java/org/getopt/luke/NoScoringScorer.java:7:  error: NoScoringScorer is not abstract and does not override abstract method iterator() in Scorer
[error] public class NoScoringScorer extends Scorer {
[error]        ^
[error] luke/src/main/java/org/getopt/luke/NoScoringScorer.java:19:  error: method does not override or implement a method from a supertype
[error]   @Override
[error]   ^
[error] luke/src/main/java/org/getopt/luke/NoScoringScorer.java:29:  error: method does not override or implement a method from a supertype
[error]   @Override
[error]   ^
[error] luke/src/main/java/org/getopt/luke/NoScoringScorer.java:44:  error: method does not override or implement a method from a supertype
[error]     @Override
[error]     ^

[DmitryKey]

Hi @shengc

thanks for trying. Indeed, master has been on 5.4.0. I have done a trivial fix, this needs a test. Give it a go, if you have a chance.

[shengc]

Yeah, that works in my local build too. Thanks for the quick turn around!

[DmitryKey]

@shengc you're welcome!