2012.2: bump version number

band_gaps_he: update test_install.py

2012.1: bump version number

linearizer: docs: update developer guide, new linearizer.rst

2011.4: bump version number

cython: fix script/gen_term_table.py for circular dependency

2011.3: bump version number

easier_terms: update SurfaceField.setup_dof_conns() for is_trace argu…

…ment

fix doc/release_tasks.rst

new_terms: new examples/miscellaneous/compare_vector_terms.py