Narrow down the scope of the "if not set, fail" behaviour in the Bintray plugin.
Narrow down the scope of the "if not set, fail" behaviour in the Bintray plugin.

    * What went wrong:
    Some problems were found with the configuration of task ':unacceptable-aliases:bintrayUpload'.
    > No value has been specified for property 'apiKey'.
    > No value has been specified for property 'repoName'.
    > No value has been specified for property 'packageName'.
    > No value has been specified for property 'user'.

Turns out the Bintray plugin is persnickety about being inside of an `if` for
some reason. Hack hack hack.

unacceptable/unacceptable,unacceptable/unacceptable