define DOMAIN-OF here, specialize also for MEASUREMENT-DOMAIN
batch checkin (codebase may not compile in this changeset) - revising amgbiguity of measurement magnitude, degree, and numeric value, in refactoring Ig1m for code alignment in Ig2m
add guide - present focus is for design review of Ig1m
begin comments about 'first sprints', up to segue about HyTime
ENUMERATE-MEASUREMENT-DOMAIN: Add optional RETURN-TYPE arg; DEFGENRIC forms for accessors; cleanups
MEASUREMENT-CLASS-REDEFINITION: new; REGISTER-MEASUREMENT-CLASS: Apply MEASUREMENT-CLASS-REDEFINITION
defgeneric for CONVERSION-FACTOR reader functions
REGISTER-MEASUREMENT-CONVERSION-FACTOR: Rename to REGISTER-CONVERSION-FACTOR
add test system
method SCALE-SI (GRAM ...) - move source code into prefix.lisp
CONDITION-{SOURCE,DESTINATION}-DOMAIN: Rename to CONVERSION-{SOURCE,DESTINATION}-DOMAIN; comments added towards refactoring and documentation around code ambiguity and mismatch
export symbols from base measurements module
add stub measure-test file (To Do)
add more of summary about Ig1m / refactoring
INIALIZE-SLOT-P: Removed; use UTILS:WHEN-SLOT-INIT instead