remove desciption about tags
fix version number in document
add categories in CHANGES descriptions
i18n form_name
i18n form_submit value
update CHANGES
bump version to 2.15.0
Merge pull request #17 from DQNEO/i18n_formname_submit

I18n formname submit
fix to work generate project
Merge pull request #18 from DQNEO/fix_create_project

fix to work generate project
introduce PHPUnit
update document about unit test
Merge pull request #19 from DQNEO/introduce_phpunit

Introduce phpunit
Merge branch 'cheese'