make a copy to prevent dirty conflicts

See #18, release log:

• ba7a70a by @yegor256: #18 typo
• e136aac by @yegor256: #18 copy

Released by Rultor 1.58.1, see build log

git clean before checkout

See #17, release log:

• e55d3a7 by @yegor256: #17 git clean
• 1e091b0 by @yegor256: cucumber removed
• 5db3595 by @yegor256: cucumber 2.01
• d4ecb49 by @yegor256: readme
• e421edb by @yegor256: exact versions of deps
• 4cafba6 by @yegor256: trollop 2.1.2
• 4d87818 by @yegor256: ruby 2.0.0

Released by Rultor 1.58.1, see build log

set -x

See #16, release log:

• 9043c7a by @yegor256: #16 set -x
• 52639ba: TEAM.md page updated
• 12a6c7d: removed deploy/commanders item...
• a4b44fa: TEAM.md page updated
• baf4397: TEAM.md page updated
• 09a44a6: updated merge/commanders list
• f3fc580: updated architect list
• 641d911: updated release/commanders lis...
• 1b6a625: updated deploy/commanders list
• e9c5ef6: updated merge/commanders list
• edbdcf2: updated architect list
• bc3c032: updated architect list
• 183e4f3: updated architect list
• b932a31 by @yegor256: doc

Released by Rultor 1.58.1, see build log

fail on pipeline error

See #11

simplify deployment scenario

See #10

fail when user.email is not set

See #9

new rultor ASC file

See #8

GPG rubygems config

See #7

Bug fix

See #6

_deploy-config.yml

see #4 Now it's possible to provide specific deployment config file