all projects have clean history in their XML files

See #371, release log:

• 2a41a7e by @yegor256: #371 platform added
• 7d97d98 by @yegor256: #371 up
• 7ec1895 by @yegor256: Merge pull request #372 from m...
• 364dff4 by @mbao01: [#371] fix issue with xml hist...
• 6d32e9b by @mbao01: [#369] add unit test
• 43fec9e by @mbao01: [#369] update Gemfile.lock
• dca25f9 by @mbao01: [#369] use issue number and no...

Released by Rultor 2.0-SNAPSHOT, see build log