add sender support
	modified:   APIs.md
	modified:   Changes
	modified:   README
	modified:   README.md
	modified:   lib/CljPerl.pm
	modified:   lib/CljPerl/Atom.pm
	modified:   lib/CljPerl/Evaler.pm
	modified:   lib/CljPerl/Logger.pm
	modified:   lib/CljPerl/Printer.pm
	modified:   lib/CljPerl/Reader.pm
	modified:   lib/CljPerl/Seq.pm
	modified:   lib/CljPerl/Var.pm
	modified:   t/basic_syntax.clp