added classes for job, batch and extractor
added simple integration test
add extractor for xero
added support 'since' and 'grain' variables for xero extractor
fix inuit extractor
intuit extractor: added ability to produce large amounts of data
add tests for intuit extractor
added batch support for intuit
added data for tests
fixed some bugs
fix tests, added unit test for activecell customer object, changed structure of project
minor cleanup
added default object for qbd
update customers object test
refactoring, fix bugs
add integration test transform qb customer to ActiveCell customer
fix bugs, realization update, delete, create load to ActiveCell functions
added data for tests
fix intuit batch extractor
added custom errors