4.1.0 download keywords performance

Merge pull request project-a#21 from mara/Handle-duplicate-ids

Merge release 4.0.0 changes for including the Ad-group-id

Change MARA_XXX variables to functions to delay importing of imports …

…(requires updating mara-app to 2.0.0)

Migrate to Adwords API version v201809. Update googleads module to 15…

….0.2. Default file version set to v4

Release 2.0.0

- Rename package to google-ads-performance-downloader
- Adapt code to reflect the renaming of Adwords to Google Ads
- Update googleads-python-lib to 13.0.0

Merge pull request project-a#17 from mara/update-to-sdk11

moved to sdk 11 and changed to google oauth

Dowload currency information for each account

add api version to config

moved to googleads 10.0.0

Allow for arbitrary characters in account / campaign / ad group labels