Rewrite tests with vim-vspec 1.1.0
Farewell to mduem
Merge branch 'migrate-to-vim-flavor'
Change the one-line abstract
Update legacy links
Rewrite the introduction
Fix a typo on tags
Add notes to obsolete functions
Restructure the interface section
Merge branch 'refine-document'
Add a Gemfile for development dependencies
Add a Rakefile for routine works
Add a configuration file for Travis CI
Ignore intermediate files for utitlities
Merge branch 'use-travis-ci'
Update copyright notices
Fix the name of the license
Improve the document
Add a README, mostly copied from the document
Bump up version to 0.3.13