Merge branch 'master' into dcoref-dict-integration
Removed dcoref.dict property parameter. Removed CorefDictionaryMatch from the default sieves in coref.properties.
Ignore first header line of the coref dict files. Check if the dictionary has been loaded when the coref sieve is specified in properties.
If we keep constraints as an empty list when it is empty, we don't need to check for null
Look how good performance is getting for this product no one uses
Remove boolean variables that weren't really needed
Merge branch 'master' into dcoref-dict-integration
Integrated the coref dictionary (including NE signatures) into the coref system.