first stab at requirements
use a namespace (schema) for assembl databases
use pyodbc3
Remove zope.sqlalchemy, it doesn't play along with virtuoso, and we don't use it for anything
port needs to be converted to an int
Revert "Remove zope.sqlalchemy, it doesn't play along with virtuoso, and we don't use it for anything"

This reverts commit 4cf342c8756f26fa7dff79540896956b79cf68a7.
Update README and requirements.txt
Fix fabfile paste error
Update fabfile: tolerate rbenv already installed in local user
nvarchar is pathetic in virtuoso. We'll need many UnicodeText (long nvarchar)
virtuoso transitive query (1st stab)
transaction commit for every new message. WARNING: it invalidates objects. To be considered.
pep8 cleanup
we cannot index UnicodeText
use celery for asynchronous mail reading. Note that you have to start celery. I do not yet notice task completion.
Fabfile improvement
Fix column type for post.ancestry
Progress:  requests for ideas don't crast (results unverified)
Add nullable=false to user.username.  Unique nullable columns tend to give unexpected behaviour...
Revert "Add nullable=false to user.username.  Unique nullable columns tend to give unexpected behaviour..."
Application logic requires to accept nullable here.
I'll disable the index instead.

This reverts commit 3e10a0a09b7618041f0e019117cb6ef8b48f5a2d.