[ #1 ] init project

Scala: 2.10.0
Scalaz: 7.0.0-M7
Merge branch 'feature/init_project_#1' into develop
[ #3 ] define some core types
Merge branch 'feature/data_type_#3' into develop
[ #4 ] make HTTP GET wrapper
[ #4 ] implement getUser function
Merge branch 'feature/get_user_#4' into develop
[ #5 ] implement read CrowdConnection from config

using typesafe config
Merge branch 'feature/config_#5' into develop
[ #6 ] implement getGroup function
[ #6 ] refactoring - rename CrowdErrorUtil to ResponseParseHelper
[ #6 ] refactoring - clip parseBasicGetResponse
Merge branch 'feature/get_group_#6' into develop
[ #7 ] define Password data type
[ #7 ] implement authenticate function
[ #7 ] refactoring - clip parseUser to ResponseParseHelper
Merge branch 'feature/authenticate_#7' into develop
[ #8 ] add .travis.yml
Merge branch 'feature/travis-ci_#8' into develop
[ #9 ] implement get{Direct,Nested}GroupList function