Moved the tests away from load_bravo test helper function

Replaced all instances of load_bravo() with load_fixture("bravo.ttl") and
deleted the load_bravo() function from helper_funcs.py
Removed a condition test that could never evaluate to true

If the statement ever does evaluate true, then an error should result.
Merge branch 'remove-faulty-condition' into testing

This condition could never evaluate true, and has now been removed as it
was impossible to test.
v0.3.2, 2014-10-03 -- Specialisations
	- Added some queries to group specialisations and alternates so that
	they can be treated consistently. Additionally removed some unused
	code.