Case detection

[kwalcock]

Should the result for the word "XxX" really be CASE_x? The code doesn't seem to be used in the project, so the expected result is unclear. Perhaps the input is constrained so that this possibility is avoided.

processors/library/src/main/scala/org/clulab/sequences/CaseDetector.scala

Lines 23 to 27 in a589771

	var v = CASE_x
	if (uppers == w.length) v = CASE_X
	else if (uppers == 1 && w.charAt(0).isUpper) v = CASE_Xx
	else if (uppers >= 1 && !w.charAt(0).isUpper) v = CASE_xX
	v