rename modules Dimensions -> Metrology
Dim is now called a Qu (Quantity)
put dimensions, units, quantities in the corresponding modules, respectively.
change names:
  dimIn -> valIn
  dimOf -> quOf
  dim -> redim
enhance documentations.
rename two SI dimensions according to VIM.
rename the test folder so that it looks like a module name
rename redim.
attempt to fix the test
update top-page cabal documentation.
export type synonyms for dimensions.
update the comments on test file accordingly.
update the dimension names in the Imperial modules.

(These modules are at the moment disabled in units library, but will go to units-extra library as soon as the rename get merged to master.)
update the readme upto before the Example section.
Typos, grammar, etc.
add missing file:  Data/Metrology/Types.hs
Merge branch 'master' of github.com:goldfirere/units into rename
Merge branch 'rename' of github.com:goldfirere/units into rename
point the watching script to a new test program.
rename the DimTypes.hs module to reside within SI framework.