fix(Wercker): Removed Wercker reference as same has been deprecated

[agnihotrigaurav]

Removed Wercker reference as same has been deprecated

[spinnakerbot]

The following commits need their title changed:

• 74fb486b9d4fd0828357c6781db93d2f28695b3a: Removed Wercker reference as same has been deprecated

Please format your commit title into the form:

<type>(<scope>): <subject>, e.g. fix(kubernetes): address NPE in status check

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