This commit remove files and references which are now in different packages.

  se3.py as been moved to sot-tools.

  To trace all default signals, call AbstracHumanoidRobot.traceDefaultSignals
  method.

  This file is now defined by package sot-hrp2.

    This task contains the center of mass and ankles features.

Correct issues with filesystem.

The code can now compile without.

    Both methods take a task as input and forward to Solver.sot.

Specified -ldynamic.so whereas this package does not generate
libdynamic.so file. Instead this is :
${CMAKE_INSTALL_PREFIX}/lib/plugin/dynamic.so
which is generated.
Further modifications will be needed to support other platforms.

This does not affect the compilation on Ubuntu 10.04.

This reverts commit 52c7440e.

    sphinx exits with a double free corruption error.