make the centre variable global to the hood context
a test to check that the start of the search is added to the tabu list
add assert to make sure update_best returns false
loosen returns true if the standard deviation can still be increased
changed the output of dist.loosen to make more sense
changed the output of dist.loosen to make more sense
reinstate this test
changed test to cope with next_candidate just returning hash of parameters
the first results that come back from experiment will be for the score that the tabu thread started at
fixed this test and made it simpler
changed start of tabu thread to be just parameter hash
added an check to make sure that the current was set to the start with a score of nil
candidate is just a parameter hash
test to check that the thread progresses as it searches
tabu search tests wip
added option to set number of threads used for search
add tests that check if tabusearch can optimise three parameters on a simple function
check that the random number falls within the range
if the new result was scoring the centre of the hood then update that
added crude finishing criteria and random start point