Make output of target status more concise.
Add log target

  - write the list of packages with their commit id.
Update Makefile

  - remove jrl-mathtools,
  - add log target.
Rename package fcl -> hpp-fcl

  Avoid conflict between fcl official version as installed by ROS and
  modified version of hpp.
target status in Makefile check its own status
Add link to hpp-util
Add link to hpp-statistics
Use billx09 repo instead of hpp repo