11 March 2013 - merged 2expect-lite to expect-lite 4.6.0d5
	Added string concat operator "+"
		e.g. =$myvar + $other_string
Updated changelog with some futures
17 March 2013 - 4.6.0.d7
	Reworked string manipulation i.e. string math
		% m-n		slice
		+			concat
		-			remove/subtract
		/this/that/	regex search and replace
		//this/that	non-regex search and replace
			search and replace / can use alternate char ;