Remove all publishing from shippableCiBuild and fix javadoc timestamps (#642)
Remove all publishing from shippableCiBuild and fix javadoc timestamps (#642)

The tasks `uploadArchives`, `publishJavadoc`, `publishDocs`,
and `tagRelease` should only be performed by travis on the `master` or
for tags.
siordache/spock,raphw/spock,raphw/spock,raphw/spock,leonard84/spock,siordache/spock,spockframework/spock,siordache/spock