Maintenance to bl_info, remove redundant tracker URL's

add_curve_extra_objects/__init__.py

add_curve_extra_objects/add_curve_aceous_galore.py

add_curve_extra_objects/add_curve_spirals.py

add_curve_extra_objects/add_curve_torus_knots.py

add_curve_ivygen.py

add_curve_sapling/__init__.py

add_mesh_BoltFactory/__init__.py

add_mesh_ant_landscape.py

add_mesh_extra_objects/__init__.py

add_mesh_extra_objects/add_mesh_3d_function_surface.py

add_mesh_extra_objects/add_mesh_gears.py

add_mesh_extra_objects/add_mesh_gemstones.py

add_mesh_extra_objects/add_mesh_honeycomb.py

add_mesh_extra_objects/add_mesh_polysphere.py

add_mesh_extra_objects/add_mesh_pyramid.py

add_mesh_extra_objects/add_mesh_teapot.py

add_mesh_extra_objects/add_mesh_torusknot.py

add_mesh_extra_objects/add_mesh_twisted_torus.py

add_mesh_pipe_joint.py

add_mesh_solid.py