Switch to new organization

[SVN r4015]
Switch to new organization

[SVN r4017]
removed html

[SVN r4018]
First attempt at new conversions

[SVN r4033]
Move to a separate file

[SVN r4034]
Add base_unit_converter

[SVN r4035]
Add unscale

[SVN r4036]
New System Implemetation

[SVN r4228]
scaled_system->scaled_base_unit

[SVN r4254]
Made gcc happy

[SVN r4335]
Cleaned up directories

[SVN r4337]
changed absolute

[SVN r4339]
Implemented bidirectional affine conversions

[SVN r4355]
put absolute before unit name

[SVN r4356]
optimizations

[SVN r4357]
Make addition/subtraction of absolute temperatures fail

[SVN r4367]
Fixed obscure heterogeneous_system bug

[SVN r4368]
remove duplicate typedef

[SVN r4369]
Lots of little fixes

[SVN r4370]
Obliterate ordinal

[SVN r4371]