update changelog, gitignore, readme

.gitignore

-.vscode
-rsrc/version.txt
-version-info*.txt
-mkdssp
+.vscode/
 .vs/
-build
+build/
 .gdb_history
 **/*.dssp
 src/revision.hpp
-out/
-node_modules
-docroot/fonts
-docroot/scripts
-docroot/css

README.md

-DSSP 4.3
+DSSP 4.4
 ========
 
 This is a rewrite of DSSP, now offering full mmCIF support. The difference

changelog

@@ -2,6 +2,7 @@ Version 4.4.0
 - Packaging (split out the web server again)
 - Added markdown doc file, all doc files are now created from mkdssp.1
   using pandoc, if that is installed.
+- small changes in output category item names (range_1 renamed to range_id_1)
 
 Version 4.3.1.1
 - Check to see if data will fit in old format before starting calculations