Mount ${HOME}/.aws in breeze environemnt if --forward-credentials

[xinbinhuang]

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[xinbinhuang]

Seems Travis is upset about some UI tests, but it is not relevant to this PR?
@mik-laj

[zhongjiajie]

Restart the failing test

[zhongjiajie]

Merge even if Travis unhappy, unrelated and today in other PR.

[zhongjiajie]

@xinbinhuang Thanks.

[xinbinhuang]

@zhongjiajie @potiuk @mik-laj Thanks for reviewing and merging!