add xattr op
Remove Ant as build system

Maven is now supported and probably a lot better to use
maven: Set default build target to install
maven: Set the groupId to com.ceph
maven: Remove pom.xml.in file
rbd: add jna binding and unit test for list snapshot children (rbd_list_children)
rbd: fix jna binding and add unit test for list images (rbd_list)
Merge pull request #9 from euca-nightfury/master

Fixed image listing and added binding for listing snapshot children. Added unit tests
Merge pull request #6 from CzBiX/xattr

add xattr operations
auto increase buffer size to read xattr value.