fix SHOW_DATA_PATTERN and add test case of collect_showdata_param()
refactor walk_oid()
add .travis.yml and pip's requirements.txt
disable uniout package (pip install failed)
add parse_org_info() and its unittest
use org_info_parser.parse_org_info() instead of OrgInformation class
Merge pull request #21 from ccc-larc/develop

Refine, add test cases and Travis CI support