10 March 2013 - 2expect-lite 4.6.0.d4
	Added string search/replace
		e.g. =myvar /search/replace/
	Added regex search/replace
		e.g. =myvar ;regex_search;replace;

10 March 2013 - released 4.5.0 (was 4.4.2.d7)
10 March 2013 - released 4.5.0 (was 4.4.2.d7)
	Updated git for release