Merge pull request #1 from iampersistent/master

adding support and interfaces
Fixes in composer.json
Add Travis to readme
add tests for creating and adding attributes
Merge branch 'master' of github.com:iampersistent/VespolinaProduct
clean up tests, implement createAttribute
mark the test incomplete so we aren't failing
add doFindBy to FindBy methods
Added findProductBySlug + deleteProduct
Merge pull request #2 from beeldspraak/minor-fixes

Added findProductBySlug + deleteProduct
update command composer
fix namespace
fix product handler
wip
remove composer.phar installation (take 2)
add db mapping
revert back to namespace in docs
Merge pull request #3 from jrobeson/patch-2

remove composer.phar installation (take 2)
Merge pull request #4 from immersivelabs/mapping

Mapping
add gateway to product manager, use array to pass in class names