Bumped version to 2.2.2

• Calling del object['key'] will correctly update the change history, thus removing the key as a parameter in API request.
• CanArchive mixin has been added which allows campaigns, ad sets, and ad groups to be archived by calling remote_archive()
• Error handling has been much improved

try:
    account = AdAccount('invalid-account-id')
    account.remote_read()
except FacebookRequestError, e:
    print e.api_error_message()
    print e.api_error_code()

Check the exceptions.FacebookRequestError object for more method calls!

• Fixed activities endpoints.
• You can now reference EdgeIterator objects as if they're arrays:

adgroups = account.get_ad_groups() # returns EdgeIterator object
print adgroups[0]
print adgroups[1]

• Calling remote_update() will now return a correctly updated object without having to call remote_read() again. Note: This is optimistic-- we do not re-fetch the data.

adgroup = AdGroup(123123)
adgroup.remote_read(fields=['name'])
print adgroup['name'] # Outputs "Hello World"
adgroup['name'] = 'Changed Name'
print adgroup.remote_update()

Output:
<AdGroup> {
    "name": "Changed Name"
}

• CustomAudience fields are now all defined
• Examples for CustomAudience have been added.