Initial work on model mapping to Api
Added InvariantCulture to totalTax

Made totalTax parse InvariantCulture, because of decimal in Cultures like nl-NL
Fixed Taxprovider Culture
Merge branch 'master' of https://github.com/wderoo/Merchello.git
Merge remote-tracking branch 'wderoo/master' into 1.4.1
Merge pull request #898 from rustyswayne/1.4.1

Merges in contributions from @wderoo - more localization patches