[#109] sorting branches/tags list
[#109] fix error with undefined method `name` for String
fix find commits with leading `0` symbols
remove unneeded comment
add some comments
Merge pull request #110 from abf/rosa-build:109-sorting_branches_and_tags
 #109 sort branches/tags list
Merge pull request #117 from abf/rosa-build:fix-getting_commit_hash
 fix finding commits with leading `0` symbols
Fixed: NoMethodError
#118: Use i585 and x86_64 by default
Merge pull request #119 from abf/rosa-build:118-use-i585-and-x86_64-by-default
 #118: use i586 and x86_64 by default