add http auth control

fixes missing tracker::getIdByName()

fix http query building for nested arrays

add support for attaching a file on issue create

cast customer fields id to int + update example.php file to show usag…

…e of upload + custom_fields

fix edit issue method not compatible with custom_fields

add issue custom_fields handing + fix casting bug (Project+Version api)

add upload for issues

add upload for attachments

new param to user->all()