Wrapped the bitmaps.
Now with a factory for wrappers.
Forgot to add these files
At least some of the unit test pass
More tests
Appears to work.
Patching a small issue.
It might actually be better with interfaces
Merge branch 'master' of github.com:lemire/bytebuffer-collections

Conflicts:
	src/main/java/com/metamx/collections/spatial/bitmap/WrappedImmutableConciseBitmap.java
	src/main/java/com/metamx/collections/spatial/bitmap/WrappedImmutableRoaringBitmap.java
Fixing minor compilation issue on Java8
removed the commented import and blank lines
bitmapfactory  made final
BitmapFactory turned into an interface
Fixed minor formatting issue.
Merge pull request #3 from lemire/master

As requested: this enables support for Roaring Bitmap with minimal code duplication