issue: Fix an error while posting an issue.

This bug is caused by introducing Mass Update at 7afda12.
update project menu to show oirignal project
remove unused variable
project: Load README faster by fixing getReadmeFileName()

This reduce tps of the page from 3529ms to 38ms.
project: Load README faster by remove duplication.

Remove duplicated calling of project.readme in the view. This reduces
tps of the page from 38ms to 33ms.
#116 added pullrequest validation
Merge pull request #118 from npcode/fix/overview-slowness

Fix the slowness of the Project Overview page.
Merge pull request #111 from npcode/fix/mass-update-routing-error

issue: Fix an error while posting an issue.
Merge pull request #117 from keesun/bug/pull-request-create

풀리퀘스트 생성시 폼 검증 기능 추가