sysutils/rubygem-bosh_cli is incompatible with devel/rubygem-progressbar
(1.8.2 at the time of this commit). This causes BOSH commands, such as
`bosh upload release` to fail with an obscure Ruby exception.

devel/rubygem-progressbar09 is svn-copied from devel/rubygem-progressbar
and downgraded to 0.9.2. sysutils/robygem-bosh_cli `PORTREVISION` is
bumped to reflect the change of dependency.

Approved by:	antoine (mentor), sunpoet
Differential Revision:	https://reviews.freebsd.org/D9651