CLEAN: set path info time fields to zero

Not really required as valid is false.
FIX: compilation of ESP pages

Incorrectly calculating the length of a text block. [issue 323]
FIX: ESP generation of paks using the right versions. [issue 322]
FIX: make install installation of ESP paks [issue 324]

Missing ESP pack installation commands in makefiles.
FIX: Continued [issue 324]
FIX: Continued issue 324
REGEN: doc for version 4.5.4