Portions of OpenOCD are compiled as shared library.  To build OpenOCD with success is now needed to install the libtool package. For more information look at the point n. 5 of the Developer environment setup section.

What's new:
- The script  now uses the command ldconfig in order to correctly manage the libopenocd.a dynamic library installed in the /user/local/lib folder.
- Try to manage different OpenOCD versions.