adding ecommerce_tax module

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@949 950b781c-c544-efab-2f99-90083ee69683
adding _config, LICENSE, and README to ecommerce_tax

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@953 950b781c-c544-efab-2f99-90083ee69683
added required code to ecommerce_tax/_config.php

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@962 950b781c-c544-efab-2f99-90083ee69683
ecommerce_tax: updated _config.php

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1036 950b781c-c544-efab-2f99-90083ee69683
small changes to ecommerce_tax

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1153 950b781c-c544-efab-2f99-90083ee69683
small fix in GSTTaxModifier: making method public as per parent class

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1204 950b781c-c544-efab-2f99-90083ee69683
small fix in tax

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1391 950b781c-c544-efab-2f99-90083ee69683
fixing casted variables

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1481 950b781c-c544-efab-2f99-90083ee69683
cleaned up config file

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1495 950b781c-c544-efab-2f99-90083ee69683
updated getCMSFields

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1595 950b781c-c544-efab-2f99-90083ee69683
bug in tax

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1647 950b781c-c544-efab-2f99-90083ee69683
bug in tax

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1648 950b781c-c544-efab-2f99-90083ee69683
changed added to above price TO added to sub-total

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1652 950b781c-c544-efab-2f99-90083ee69683
MINOR: improve runUpdate method, add LiveCalculatedTotal method 

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1761 950b781c-c544-efab-2f99-90083ee69683
MINOR: updating readme file

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1786 950b781c-c544-efab-2f99-90083ee69683
BUGFIX: modifier across the board cleanup

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1812 950b781c-c544-efab-2f99-90083ee69683
API: improvements in GST Tax Modifier - providing a truer tax picture

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1831 950b781c-c544-efab-2f99-90083ee69683
MINOR: small adjustment to deal with productvariations, where the productvariation does not have special tax rules, but the product does (hack-ish, but useful).

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1834 950b781c-c544-efab-2f99-90083ee69683
MINOR: getCMS FIELDS fix

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1881 950b781c-c544-efab-2f99-90083ee69683
MINOR: change from EcommerceRole to EcommerceCountry

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@1882 950b781c-c544-efab-2f99-90083ee69683