Issue #208: extend Release interface.
Issue #212: implement RtGitignores.
Issue #208: test indentation is corrected.
Issue #208: added test for Release.Smart.
Issue #212: corrections.
Merge pull request #29 from jcabi/master

merge from master to my repo
Merge pull request #30 from jcabi/master

merge to my branch
Tests Release.Smart methods are updated.
Merge pull request #264 from den-anisimov/208

#264: pull request Issue #208: extend Release interface.
Merge pull request #267 from den-anisimov/212

#267: pull request Issue #212: implement RtGitignores.
Issue #208: extend Release interface.
Issue #212: implement RtGitignores.
Issue #208: test indentation is corrected.
Issue #208: added test for Release.Smart.
Issue #212: corrections.
Tests Release.Smart methods are updated.
Merge pull request #31 from jcabi/master

merge from master to my branch
Issue #301 Added create() methods to PublicKeys and implemented
RtPublicKeys#create
Issue #301 Implemented MkPublicKeys#create method
Issue #142 -  implemented unit tests for RtGitignores