feature: extended_property
feature: attachments
add elements in calendar_item
set exchange version
feature: extended_property
feature: attachments
add elements in calendar_item
set exchange version
Merge branch 'extended_property_and_attachments' of github.com:jmonteiro/exchanger into extended_property_and_attachments
new element for attachment files
Merge pull request #1 from jmonteiro/attachment

Attachment