Synchronize cmake submodule
Remove deprecated method

  Joint::updateTransformation.
Fix installation of abstract-robot-dynamics.hh

  Modification in the cmake submodule caused this header to be installed in the
  wrong directory.
[travis] Add Travis and coveralls.io support
Synchronize
[travis] Add push token
Update README.md
Synchronize
Search for eigen added in CMakeLists.
Use standard ADD_REQUIRED_DEPENDENCY for eigen instead of custom macro.
Add debian/rules.
Merge branch 'topic/eigen' of github.com:laas/abstract-robot-dynamics into topic/eigen