change templatetag get_all_containerbox to list all containerboxes
Merge branch 'master' of https://github.com/guilhermebr/opps

* 'master' of https://github.com/guilhermebr/opps:
  change templatetag get_all_containerbox to list all containerboxes
Fix pep8, in containers templatetags container_tags
opps/containers/templatetags/container_tags.py:72:1: W293 blank line contains whitespace
opps/containers/templatetags/container_tags.py:84:13: E126 continuation line over-indented for hanging indent
opps/containers/templatetags/container_tags.py:85:13: E126 continuation line over-indented for hanging indent
opps/containers/templatetags/container_tags.py:86:13: E126 continuation line over-indented for hanging indent
opps/containers/templatetags/container_tags.py:90:17: E126 continuation line over-indented for hanging indent
make: *** [pep8] Error 1