This does not affect the compilation on Ubuntu 10.04.

    Implemented getDocString method,
    Remove DYNAMIC_GRAPH_ENTITY_DECL() in class GripperControl.

    FeaturePositionRelative is a wrapper python Entity class that creates
    two FeaturePoint6dRelative and plug signals given as input.

It may happen that periodic commands throw exceptions.

This patch makes sure they are caught. Unfortunately, there is no easy
way to provide a programmatic feedback on this so for now, we just
print them on stderr.

    In sot/core/__init__.py, entities used to be created in order to populate python
    classes with commands and signals for documentation purposes.

    As the documentation produced by sphinx is not yet satisfactory, it has been decided
    to document all packages from an external documentation package.

Remove declaration of methods not any more implemented.

Also, small cleaning.

This is almost like the previous commits.
The difference is that the part corresponding to the specialization
of the code is templated (and not exported).
So as to reuse this code, it has now be moved into a .t.cpp file.
The integration-*.cpp file now only contrains the definition required
by the library.

To this purpose, add a specification for the class derivator.
For unix systems, this only comes down to creating a typename.
For win32 systems, the idea is to create a class that will
 inherit the specification and be exported.

Remove the command MAKE_DIRECTORY that has been moved in python.cmake

    - correct the mkdir command to make it cross-platforms
    - remove the '/' in the module name (forbidden in win32 systems)