Better buffered array (faster and less memory usage)
Conflicts:
	src/main/java/com/jaeksoft/searchlib/util/array/FloatBufferedArray.java
	src/main/java/com/jaeksoft/searchlib/util/array/IntBufferedArray.java
Merge pull request #1000 from emmanuel-keller/1.6

Better buffered array (faster and less memory usage)