define amsmath like text mode spaces in title and credits even if amsmath is not loaded
removed unused packages and added some of them as recommended packages to the template
cleanup of font settings
fixed redefinition of spaces if amsmath is loaded in the document
updated template text, comments and packages
reordering of bib entries (biblatex: defernumbers=true)
warn authors about obsolete constructions using the nag package
update class version (aka date)