Setting up Sentry in travis.yml

gistfile1.txt

Set env variables in travis.yml:

```
export SENTRY_AUTH_TOKEN=...
export SENTRY_ORG=organization-slug
```

update_sentry.sh:

```
#!/bin/sh
VERSION=$(sentry-cli releases propose-version)
sentry-cli releases new -p my-project -p my-other-project $VERSION
sentry-cli releases set-commits --auto $VERSION
# once you are done, finalize
sentry-cli releases finalize $VERSION
```