Revert 19 commits from devel to follow topic/refact

Look what will be removed

$ git log --oneline $(git merge-base devel topic/refact)..devel

8d32638 Merge branch 'talos' into 'devel'
e6e3012 [talos] Talos making sine task and included a posture regularization
0b9a445 [hyq] Cleaned up a bit the code
286e2fe [unittest] Proper name for this unit-test class
0756ee1 [unittest] Added an unit-test for the SO3 cost
4991cfb [so3-cost] Defined a SO3 cost
e17765b [se3-cost] Defining default arguments for x and u since they aren't use here
959d4a8 [bugfix] Getting properly the nc
f1ad4ca [talos-arm] Put back the previous control regularization weight
73ed5b5 [dynamics] Update dynamics is called inside the integrator
4cd2cdb [talos] Added the first version of Talos example
34bddeb Merge branch 'rename' into 'devel'
24e28dd [CI] migration cddp → crocoddyl
e958f73 [rename] Renaming againg the library
1d1ef05 [hyq] Added a sine task in the trunk
e016e4b [dynamics] Cleaned up the code of floating dynamics
d2c2491 [ddp] Documented few getter functions
8e9f36b [dynamics] Computing the reference acceleration for the constrained forward dynamics
6d95fbd [solver] Moved the convergence variables into DDPData (from DDPParams)

Remove it

$ checkout -f $(git merge-base devel topic/refact) -- .

Handle renaming

$ git rm -rf crocoddyl

Handle file creation

$ git rm examples/talos_config.yaml examples/crocoddyl examples/talos.py

Done

$ git commit -a