adding essential files
adding some data files to treat.
include boost/Filesystem
Read all the file names
finish the implementation of the readings of the tree files architecture.
remove tracking of confidential files
adding the list of "-rstate.log" type file.

add feature to compute statistics on the error between the reference configuration vector of HRP2 and the measured configuration vector
Merge branch 'master' of github.com:laas/EnergyComputation into merge_in_github