A dynamic linking problem was fixed. libpython2.6.so is now re-dlopen() with RTLD_GLOBAL in plugin code to force resolving all symbols. A problem with the second plugin parameter was fixed. Now it correctly appends to sys.path, rather than overwriting it.
A few changes in the bundled documentation. A SCons build has been added. Now it is easy to build plugins with appropriate compiler flags. Eclipse project files are updated.