bump version to 1.0.0

Fix that stupid test randomly failing

Changed "json_response" to "response" in APIException arguments

Change version number

update cache in EsiApp if 304, fix headers case for client

related #40

Merge branch 'dev'

fixes #34, #36, #37, #39,

remove the warning test (useless test)

update version to 0.3.3

remove optional argument for __get_or_create_app as we should always

have both, because of key prefix

prefixed cache key with "esipy:" to avoid easy name collision