Merge pull request #1 from rustyconover/master

Latest work on fixing up the module
Note removal of "count" attribute in recent Stripe update to Lists
Merge branch 'master' of github.com:rustyconover/Net-Stripe
* new BalanceTransfer Object (contains Stripe fee)
* allow passing of "created" hashref to _get_collections,
  used for instance to get Charges constrained by dates
* teach hash_to_object() to convert Stripe's underscore_words
  to module's UpperCamelCase
* additional attributes in Charge object
Merge pull request #19 from NacreData/master

Charges attributes; new BalanceTransaction; etc.