refactor most of code.
Merge branch 'develop' of github.com:tokuhirom/Minilla into develop
added errorf method
refactoring migration
use Minilla::Project
short code
automatic rel2abs
clearify dist_name
oops
remove more release tests in migration
ah, escape is needed.
Do not create release tests in base dir!
Merge branch 'develop'
read meta data from MYMETA.json instead of META.json