Merge branch 'hotfix/1.2.1'
fix encoding error
detect encoding
fix encode error
import error
fix encoding error

detect encoding

fix encode error

import error
Merge branch 'fix_encode_error' of https://github.com/douhashi/redmine_importer into fix_encode_error
Merge pull request #1 from douhashi/fix_encode_error

Fix encode error
Merge branch 'develop' of github.com:zh/redmine_importer into develop