New release 3.24

-fixed TeX output for cweb documents
-fixed string interpolation in bat.lang
-added several HTML output plug-ins
-added TCL extension in examples/tcl
-added support for Kotlin, Nginx and Julia
-updated php.lang to include version 7 keywords
-updated ceylon.lang to include version 1.2 keywords
-updated scripts in examples directory
-CLI: style-infile option marked as deprecated
-GUI: shortened paths in file input lists