Remove pool::getSignal().

       This reverts commit 8fca0b1a.
       Move python interpreter in dynamic-graph-python.

       This reverts commit 0b9f9528.
       Move python interpreter in dynamic-graph-python.

     * src/CMakeLists.txt,
     * tools/CMakeLists.txt.

    * include/dynamic-graph/interpreter.h,
    * src/CMakeLists.txt,
    * src/dgraph/interpreter.cpp,
    * tests/CMakeLists.txt,
    * tools/dg-python.cpp: new,
    * tools/CMakeLists.txt: this adds a dependency to  python in dynamic-graph.

    * CMakeLists.txt,
    * include/dynamic-graph/linear-algebra.h,
    * src/CMakeLists.txt.

    For homogeneity, we use jrl-mal for matrices and vectors.

	     * src/CMakeLists.txt.

Declare boost include directories for proper boost detection. Sometimes, the boost install path is *different* from the default include paths!

It is a bad practice to put the libraries' path inside them.

This reverts commit 088220ad.

Added more exception catch codes in interpreter. Should now link correctly with boost libraries. Small debug output changes.

    * src/CMakeLists.txt, link to dl,
    * unitTesting/CMakeLists.txt.

tracer-real-time needs tracer.lib

The correct .so files for the plugins are now generated.

API to access framework functions without sotInterpreter.
Should ease the port to more complex interpreters without favoring
the internal interpreter. The latter one is here for backward
compatibility. It will be removed.

This version compile but might not work yet.
(not tested).

    * src/CMakeLists.txt.

	* src/CMakeLists.txt,
	* src/plugins/shell-functions.cpp,
	* src/plugins/shell-functions.cpp -> src/shell/functions.cpp.

       * src/CMakeLists.txt.

	 * src/CMakeLists.txt.

* New class SignalCaster
* Re-added the get, set and trace commands to signals

Renamed dynamic-graph-API.h to dynamic-graph-api.h in every header file.

The package name is now dynamic-graph (this still needs to be changed in the git repository). Updated source files to reflect that change. Clarified CMakeLists, explicited cpp source files for libraries.

(dynamicGraph/ -> dynamic-graph/)

Configured dynamicGraph package and cmake files. Last-minute adjustment to code for SOT separation (SOT Break)