add changelog
build process
break up proj proccess
change log updated for 2.1.0
(#91) - add Reseau National Belge 1972 datum
(#89) - remove point class
minor fixes
(#90) - upercase datums in proj strings
sensible defaults for false eastings/northings
version bump to 2.1.2
move the master version past whats published
Replaced dot notation with bracket notation when assigning to 'null' key, as it doesn't work in IE8.