The FIJI version string is stored in the root directory on file VERSION.
This is used in the following places:
 - doxygen uses it as PROJECT_NUMBER (passed as an environment
   variable set by the docs/makefile picked up by the doxyfile)
 - FIJI.pm defines and exports a FIJI_VERSION constant
 - FIJIUtils.pm inserts it for all occurrances of $FIJI_VERSION$ in the about text
 - the UG and TRM show it on their cover pages
 - FIJI/VHDL.pm, Constraints.pm, Netlist.pm put it in all generated files
   (additionally also the design ID is printed where it wasn't before)
 - all "executables" report it in the first log message