migration scripts are completely fixed (close #50)
test on downgrade in migration script in travis ci
Merge pull request #55 from sjw0687/fix_issue_50

Fix all of database migration scripts and add test on downgrade in CI
define Character and add relationships of it
define custom uuid type used in SQLAlchemy
Temporary workaround for import_all_modules

This should be fixed.
Return as frozen set
Test comply
Merge pull request #58 from tkiapril/import-module-workaround

Temporary workaround for import_all_modules
avoid using backref for relationship
migration script for Character and WorkCharacter
Merge pull request #56 from sjw0687/character

Add character to ontology database schema
add missing __all__ element
Merge pull request #57 from sjw0687/uuid

Define custom uuid type used in SQLAlchemy
add libsass dependency and libsass support
add bootstrap-sass submodule
base styling using bootstrap and scss
fix wrong submodule and settle branch
add setup.cfg for libsass-python
change submodule git protocol for anonymous access