* fixes a warning remaining from #4010 and #4220

Fix all the resting errors to have a valid swagger file.

They are still some warnings but nothing blocking.

Doing so I found that some request still misses son parameters for some POST/PUT/PATCH request. This means the a client generated from the swagger file will not work completely. 

Fix #4088 by activating validation in drone
Should fix #4010.

* add more webhook support

* move hooks templates to standalone dir and add more webhooks ui

* fix tests

* update vendor checksum

* add more webhook support

* move hooks templates to standalone dir and add more webhooks ui

* fix tests

* update vendor checksum

* update vendor

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

* load attributes when created release

* update comparsion doc

* Update swagger documentation

Add docs for missing endpoints
Add documentation for request parameters
Make parameter naming consistent
Fix response documentation

* Restore delete comments

* revert #2001 and fix issue comments hidden

* fix #2001

* fix import

* improve comment type

* reduce unnecessary join

* fix comment on FindCommentsOptions

* ListAllInRepo & Delete Issue-Comments

* Moar data in issue-comments

From code.gitea.io/go-sdk/gitea
  To code.gitea.io/sdk/gitea

- Update import paths from github.com/go-gitea to code.gitea.io
- Fix import path for travis

See https://docs.travis-ci.com/user/languages/go#Go-Import-Path

add `since` query string support to list issue comment