Added two new useful methods..

2.1.0

Update README.md

Major changes in conditions API

2.0.0

Update README.md

Added relevant methods for dealing with conditions

1.1.0

Update README.md

cart conditions fixes

1.0.4

fixed bug for conditions became empty

Persist Conditions to session as well

1.0.3

persist conditions to session as well

bug fix with getTotal()

fix with getTotal() returning 0 when there is no conditions added..

Some Fix

1.0.1

fix cart session empty

Laravel 5 Version

1.0.0

updated readme doc