* Revert "Merge pull request #753 from gin-gonic/bug"
This reverts commit 556287ff08, reversing
changes made to 32cab500ec.
* Revert "Merge pull request #744 from aviddiviner/logger-fix"
This reverts commit c3bfd69303, reversing
changes made to 9177f01c28.
* add custom Delims support
* add some test for Delims
* remove the empty line for import native package
* remove unuseful comments
* Add new function to Render interface for writing content type only
* Add support for the new function in Render interface for writing content-type only
* Fix unhandled merge conflict in context_test.go
* Update vendor.json