more admin work done
Fixed spacing/tabs standard in tpl file. Mentioned in issue #979 but pull request was incorrect as it used tabs - this is the correct fix. Close #979
more work to the admin
Merge branch 'master' of https://github.com/opencart/opencart
more of the front end template done.

also updated the admin invoice to use bootstrap.
Merge branch 'master' of git@github.com:opencart/opencart.git