4-26-2011:  0.1 initial build of RTFBS package
3-29-2012:  0.2 
	Renamed plot.fdr to makeFdrPlot to indicate that it is not an S3 method
	Cleaned up documentation to use roxygen2 instead of roxygen
	Bug fixes:
	 Fixed problem where it couldn't score sequences the same length as the PWM
	 Fixed problem where calc.fdr crashed when simSeqsScores has length 0
10-23-2013:  0.3 Added option to return posterior match scores
	Optionally score.ms now returns a list() structure representing raw
	match scores for each strand, and under the background model.
12-5-2013: 0.3.1 Fixed memory allocation error in read.ms
1-12-2015: 0.3.3 Cleaned up some warnings and removed pcre
