Deprecate *_bbb and pep8

[thet]

More cleanup work:

• Deprecate the at_bbb and dx_bbb modules. They are merged with the at respectively dx modules.
• pep 8

Also fixes the following error from https://github.com/plone/plone.app.widgets/pull/165 /cc @petschki

  File "/home/_thet/repos-config/dotfiles-thet/dot.buildout/eggs/plone.portlet.static-3.1-py2.7.egg/plone/portlet/static/static.py", line 66, in IStaticPortlet
    directives.widget(text=RichTextFieldWidget)
ZopeXMLConfigurationError: File "/home/_thet/repos-config/dotfiles-thet/dot.buildout/eggs/plone.app.collection-1.0.15-py2.7.egg/plone/app/collection/configure.zcml", line 9.2-9.46
    ZopeXMLConfigurationError: File "/home/_thet/repos-config/dotfiles-thet/dot.buildout/eggs/archetypes.querywidget-1.1.3-py2.7.egg/archetypes/querywidget/configure.zcml", line 8.2-8.45
    ZopeXMLConfigurationError: File "/home/_thet/repos-config/dotfiles-thet/dot.buildout/eggs/plone.app.querystring-1.3.17-py2.7.egg/plone/app/querystring/configure.zcml", line 11.2-11.42
    ZopeXMLConfigurationError: File "/home/_thet/repos-config/dotfiles-thet/dot.buildout/eggs/plone.app.registry-1.2.5-py2.7.egg/plone/app/registry/configure.zcml", line 12.4-12.34
    ZopeXMLConfigurationError: File "/home/_thet/repos-config/dotfiles-thet/dot.buildout/eggs/plone.app.registry-1.2.5-py2.7.egg/plone/app/registry/browser/configure.zcml", line 6.4-6.43
    ZopeXMLConfigurationError: File "/home/_thet/data/dev/amkumma/buildout-amkumma/src/plone.app.z3cform/plone/app/z3cform/configure.zcml", line 10.2-10.41
    ZopeXMLConfigurationError: File "/home/_thet/data/dev/amkumma/buildout-amkumma/src/plone.app.widgets/plone/app/widgets/configure.zcml", line 14.2-14.41
    ZopeXMLConfigurationError: File "/home/_thet/repos-config/dotfiles-thet/dot.buildout/eggs/Products.CMFPlone-4.3.14-py2.7.egg/Products/CMFPlone/configure.zcml", line 23.2-23.45
    ZopeXMLConfigurationError: File "/home/_thet/repos-config/dotfiles-thet/dot.buildout/eggs/plone.app.jquerytools-1.9.1-py2.7.egg/plone/app/jquerytools/configure.zcml", line 115.4
    NameError: name 'RichTextFieldWidget' is not defined

[coveralls]

Coverage decreased (-0.3%) to 74.453% when pulling c148eca9b95e84bef6797f76cb05192b632e3d84 on thet-deprecate into 6fc477469f5acdea34dafd31d5deaebd299f5abc on 1.x.

[thet]

Will merge then. Tnx!