add bare option to convert and construct command
Merge pull request #37 from yum-kvn/add-bare-option-to-convert-command

add bare option to convert and construct command.
This commit works correctly in my machine!
reset --hard HEAD after creating historage
Merge pull request #39 from yum-kvn/reset-hard-head-after-creating-historage

reset --hard HEAD after creating historage
removed unused import
removed obsolated class
added TODO for performance bug
Merge pull request #42 from niyaton/refactoring-committer

Refactoring committer
Rename file convertor.py to converter.py
Merge pull request #47 from yum-kvn/rename_convertor_to_converter

Rename file convertor.py to converter.py
rename function name command to argument
remove working_repositories option from convert command
Merge pull request #48 from yum-kvn/refactoring-convert

Refactoring convert
fix to use syntax_trees_dir option
Merge pull request #50 from naoGreenTea/fix-output-dir-option

Fix output dir option
fixed README
fixed argument name
fixed message and used python 3.X style print
Extracted method: "check_and_make_working_dir"
Merge pull request #53 from niyaton/quick-fix-working-dir

Quick fix working dir