added:

- Account Store Mappings resource
- account store mappings methods to Application resource
- added sample code

know issues:
- Application.createAccountStoreMapping is useless, because you can not create Account Store Mapping directly
Merge branch 'master' into account_store_mapping

Conflicts:  example.js
updated AccountStoreClassFactory
updated Application.createAccountStoreMapping method
added AccountStoreMapping resource docs
added docs for AccountStoreMapping functionality in Application resource
add AccountStoreMapping Resource tests
add Application Resource tests
store to map
updated Application.setDefaultGroupStore Application.setDefaultAccountStore

accordingly to comments
updated tests
Merge branch 'master' into account_store_mapping

Conflicts:
	test/common.js
Isaacs quick fix for node 0.8 build at Travis
add update Account Store Mapping on setDefaultGroupStore and setDefaultAccountStore
Merge remote-tracking branch 'origin/master' into account_store_mapping
updated Application setDefaultAccountStore and setDefaultGroupStore to use detectSeries
allow setDefaultAccountStore and setDefaultGroupStore to take an href as a string, or an object that has an href property
added 'disabled' options for Client constructor cacheOptions
added private method for cache invalidation
removed usage of ResourceFactory in Application resource

replaced saving of Application in setDefaultAccountStore and setDefaultGroupStore to application cache invalidation