HipChat 4.0 client does not support Linux Mint APT repositories

Summary

User failed to install new 4.0 client in Ubuntu base Linux because of invalid distribution.

W: Failed to fetch https://atlassian.artifactoryonline.com/atlassian/hipchat-apt-client/dists/rosa/main/binary-amd64/Packages  HttpError404
W: Failed to fetch https://atlassian.artifactoryonline.com/atlassian/hipchat-apt-client/dists/rosa/main/binary-i386/Packages  HttpError404
E: Some index files failed to download. They have been ignored, or old ones used instead.

Environment

• Linux Mint
• Os Freya 0.3

Step to reproduce

1. sudo sh -c 'echo "deb https://atlassian.artifactoryonline.com/atlassian/hipchat-apt-client $(lsb_release -c -s) main" > /etc/apt/sources.list.d/atlassian-hipchat4.list'
2. wget -O - https://atlassian.artifactoryonline.com/atlassian/api/gpg/key/public | sudo apt-key add -
3. sudo apt-get update

4. W: Failed to fetch https://atlassian.artifactoryonline.com/atlassian/hipchat-apt-client/dists/rosa/main/binary-amd64/Packages  HttpError404
   W: Failed to fetch https://atlassian.artifactoryonline.com/atlassian/hipchat-apt-client/dists/rosa/main/binary-i386/Packages  HttpError404
   E: Some index files failed to download. They have been ignored, or old ones used instead.
   

Expected Results

User should be able to install 4.0 client

Actual Results

Failed to install 4.0 client

Workaround

1. Edit atlassian-hipchat4.list
2. Change it to "deb https://atlassian.artifactoryonline.com/atlassian/hipchat-apt-client trusty main"