Using the meta_pg.
Corrected a bug in task ineq.
Added an operator into solver-kine.
Revert "Added an operator into solver-kine."

This reverts commit d16b100c978423e422c9cb0d80cde2d4b5962586.
Revert "Revert "Added an operator into solver-kine.""

This reverts commit 8eb4d5efc3ca94985e423ce4922899ac3f15ebed.
Finally, the active-set init-guess solver for inv kine.
Minor changes.
IVIGIT task-weight.
Correction of the solver kine header.
Added the ALWAYS timer in attime.
Minor changes in thread loop.
Minor modifs in the meta tasks.
Moved the matrix util python into the sot core package.
Added the task weight in the python init file.
Minor robot spec modifs.
Update cmake.
Moved some files in dedicated repository of python/
Moved to sot.core.
Moved the meta tasks.
Moved the script to python/unittest. None of them should be working yet, and need a little bit of correction and selection.