Log Message:
Update sysutils/capistrano to 2.8.0

Upstream changelog:

  ## 2.8.0 / August 3 2011

  A short release, after the last. Announcing Rails 3.1 asset pipeline support.

  The asset pipeline support requires an additiona `load` in your `Capfile`.

  You can see information pertaining to the pull request, including the inline
  comments here: https://github.com/capistrano/capistrano/pull/35

  Documentation will be available soon in the wiki.

  * Drop-In Rails 3.1 asset pipeline support. (Chris Griego)

  ## 2.7.0 / August 3 2011

  A fairly substantial release. There are fixes so that current_release works
  during dry-runs, (although, apparently still not with bundler.)

  The test-suite was also modified to work with Ruby 1.9.2, except in one case
  where Ruby 1.9.x calls `to_ary` and `to_a` on mocks, which still makes an
  error. 1.9.x has always been supported, but due to lack of maintenance on my
  part the tests didn't ever pass.

  The `start`, `stop` and `restart` tasks have been reduced to mere hooks into
  which extensions can define their own functionality.

  The `readme` was also slightly improved, simply tweaks to express how best to
  run the test suite.

  * Ensure dry-run works with `:current_release` variable (Carol Nichols)
  * Added a new variable `:git_submodules_recursive`, setting the value to false
  will ensure Git doesn't recursively initialize and checkout submodules. \ 
(Konstantin Kudryashov)
  * Added an additional task option, `:on_no_matching_servers`, setting the
  value to `:continue` will ensure tasks with no matched servers continue
  without error, instead of raising `Capistrano::NoMatchingServersError` as was
  the previous behaviour. (Chris Griego)

  A huge thanks to all contributors, as always!

  Remember: @capistranorb on twitter for news.

  ## 2.6.1 / June 25 2011

  A short maintenance release, Some fixes to the verbose flag inside the Git SCM
  as well as another argument for the (internal) `variable()` command, offering
  a default. The Git SCM is now verbose by default, but can be disabled by
  setting `:scm_verbose` to false.

  There has been an additional method added to string, within the context of the
  test suite, I'm always sketchy about adding additional methods to core
  classes, but it's a short term fix until I make the time to patch the test
  suite not to compare strings literally. The method is `String#compact`, and is
  implemented simply as `self.gsub(/\s+/, ' ')`.

  Here's the run-down of changes, and their committers, as always - a huge thank
  you to the community that continues to drive Capistrano's development.

  * `deploy:setup` now respects `:group_writable` (Daniel Duvall)
  * Fixes to `:scm_verbose` for the Git module (defaults to On.) (Matthew Davies)
  * Will now copy hidden files in the project's root into the release
  directory (Mark Jaquith)
  * Now handles closing already-dead connections in a sane way (does not raise
  an exception) (Will Bryant)
  * Renamed `Capistrano::VERSION::TINY` to `Capistrano::VERSION::PATCH` (Lee
  Hambley)
  * Removed the `VERSION` file (Lee Hambley)