This has the benefit that:
* Allows the installation of bundler as a default gem from rubygems to
include man pages.
* Removes the need to build man pages during our tests.
* Makes working with the manifest easier, because we only have source
controlled files, and not a mix of source control and generated files.
To make sure they never fall out of sync, we replace the previous
`man:build` CI task with a `man:check` task that makes sure the
generated man pages are up to date.
https://github.com/bundler/bundler/commit/23de1d0177
* bin/*, lib/bundler/*, lib/bundler.rb, spec/bundler, man/*:
Merge from latest stable branch of bundler/bundler repository and
added workaround patches. I will backport them into upstream.
* common.mk, defs/gmake.mk: Added `test-bundler` task for test suite
of bundler.
* tool/sync_default_gems.rb: Added sync task for bundler.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65509 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
