Adding original_id to Legislature model
Making possible to import * from basecollector
Adding initial implementation of Camara collector
Fixing import order in Camara Federal collector
Camara Federal collector now defines the amount of paralel processes using cpu_count
Renaming all stuff from Camara to CamaraFederal
Making CamaraFederal a new-style class and renaming private functions
Enlightening CamaraFederal collector comment
Fixing max_updaters

Running the collector with max_updaters > 1 leads to MySQL exceptions.
Removing institution reference from ExpenseNature
Added CDF migration
Index: Added CDF
Merge remote-tracking branch 'origin/camarafederal'

Conflicts:
	montanha/management/commands/basecollector.py
	montanha/management/commands/collect.py
CDF: make sure we use the same party siglum for PC do B as the other collectors
CDF: avoid using all-caps names
CDF: remove dead code
CDF: use name of the legislator to look for existing ones

We may already have the legislator collected from other houses, and
using the name should give us that one.

 # Please enter the commit message for your changes. Lines starting
CDF: Always collect expenses for all the years and months of the legislature