* Helper functions for intergration test boilerplate

Set request headers in helper functions, and new helper for requests with string-formatted URLs

* improve integration test to resue models/fixtures and store git repos with source

* use gitea-integration-meta dir instead .tar.gz and cleanup every before every test

* fix import package name

* Integration test framework

* udpate drone sign

* Formatting fixes and move router.go to routers/

* update sign for drone

* Add integration test for signup

* Remove unused functions

* Refactoring

* Add repo_create_test.go

* Rollback the incomplete repo create test

* Comply with linter requirements and simplify the code a little bit