add 'description' in the list of attributes for a Transaction
Merge pull request #32 from markferrer/master

The Transaction class was missing a 'description' attribute
add iterator to make use more intuitive
added __len__() magic method
fixed issues:
fixed issues
Merge pull request #33 from mbeale/master

Added iterator and len magic method to Page resource
bump version number
Merge pull request #34 from mbeale/master

Bump version num
Merge remote-tracking branch 'upstream/master'