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Adding tests for article belongs_to_forum method
Adding "My Communities" to the user menu

ActionItem1030
Adding tests to verify solution to AI1030

ActionItem1030
Adding partial "manage_communities"

ActionItem1030
Create FilePresenter infra

The idea is never to give a Upload File to a view. That must
always work with a File Presenter providing overwrite methods
and specific views/partials.

ActionItem2373
Correct BlockHelperTest class name
Remove IE6 suport and CSS loading from Tango theme
correct bad html generation
Makes FilePresenter to work with all noosfero tests
Makes FilePresenter to work with all noosfero tests II

ActionItem2373
Makes price details to work with "other costs"

closes ActionItem2519
correct br tags
Translate disable_products_for_enterprises_enabled env setting

The disable_* settings for environment are incoherent with the
user interface and with the code itself. This changes correct
only one incoherent setting as an example how to do with all
others.
INSTALL.chat: applies to squeeze, not wheezy
Merge commit '8dbebef'
Merge commit 'bedad5b'
Merge commit 'refs/merge-requests/295' of git://gitorious.org/noosfero/noosfero into merge-requests/295
Encapsulate logic for manage_{communityes|enterprises}
Merge commit 'refs/merge-requests/313' of git://gitorious.org/noosfero/noosfero into merge-requests/313