HtmlEscaper

HtmlEscaper is used at run time in 6 crates. It is a direct run-time dependency in 5 crates.

Depender (with downloads and own rev deps)			HtmlEscaper version
700		tmi-ord		^0.2.0
320	1	ord		^0.2.0
		slidedeck		^0.2.0
		compiler		^0.2.0
		slideck		^0.2.0