Avoid defaultdict copies
Rewrite matching code to make more extensible
Empirically justified number of Confidence trials
Support b_cubed_plus; move stuff around
Remove distinction between LMATCH and CMATCH
fmt=none default unless via argparse, when fmt=tab
Provide --match rather than --matches
list-metrics command
Merge branch 'master' of github.com:wikilinks/neleval
Merge branch 'coref-keys'

Conflicts:
	neleval/document.py
	neleval/significance.py
	scripts/run_evaluate.sh