Add mjd.R, Qeff.R and remove Qeff4bit.R
	new file:   Qeff.R
	deleted:    Qeff4bit.R
	modified:   ScanPattern.R
	modified:   date.R
	new file:   delaysearch.R
	modified:   findSAM45Log.R
	new file:   mjd.R
	modified:   readPolariS.R
	modified:   readSAM45.R