shell: initial move with tests
formatter: moving done except regression tests
legacy: moved template engine
intbitset: installed from global setup.py
Merge remote-tracking branch 'egarciag-github/code-structure-get-field-values' into code-structure-with-webdeposit

Conflicts:
	invenio/modules/formatter/utils.py
travis: run python setup.py test
websearch.search_engine* -> legacy.serach_engine.*