Fix #4384

* Turn swagger.v1.json into template

* Rename ENABLE_SWAGGER_ENDPOINT option to ENABLE_SWAGGER

* env var GITEA_PUSHER_EMAIL

* set pusher email only if email address is not private

* reset to master

* build css

* Fixed spacing

* fix language list

Standardized the languages' names within the list displayed when picking up a language at the bottom of the webpages

* typo

fix a typo into documentation (template rather than templete)

* fix languages list

* added new locale text

* respect user's email privacy option

* make email visible to admin irrespective of privacy option

This allows saving the wiki page with Ctrl-Enter.

* add csv file render support defaultly

* escaping csv column content

Fix #4449

The syntax of the gitea Makefile is not platform-agnostic and is
specific to the GNU version of `make`. BSD platforms such as FreeBSD
ship with bmake (BSD make) as their default `make` program; attempting
to compile gitea by simply executing `make` causes a wall of errors to
show as a result of syntax incompatible with BSD make.

If a file named `BSDmakefile` is present, `bmake` will give it
preference over a generic `Makefile`. This `BSDmakefile` is taken from
the BSD-licensed `gmake-proxy` project [0], which transparently proxies
all `make` commands to `gmake` (GNU make) on systems where `bmake` is
the default, and if `gmake` is not installed an error message is
displayed.

[0]: https://github.com/neosmart/gmake-proxy

* Implemented basic api endpoint to manage deadlines

* Fixed checking for permissions

* Updating a deadline from the ui is now entirely done via the api

* cleanup

* Cosmetics

* fixed lint + fmt

* Added swagger model definition for deadline response

* Updated gitea-sdk

* Updated gitea-sdk

* More cleanup

* Generate swagger json

* Merge branch 'master' of https://github.com/go-gitea/gitea into issue-due-date-api

# Conflicts:
#	public/swagger.v1.json

* Fixed permission to update a deadline via api

* Re-added form to change a deadline

* Added client-side validation + not ignore error messages from the api

* Added locale for error message

* Merge branch 'master' of https://github.com/go-gitea/gitea

# Conflicts:
#	models/issue_comment.go

* Proper date validation

* Fixed indention

* moved css to css file

* added documentation for error codes

* after merge cleanup

* Added swagger description

* DO NOTHING BUT TRIGGER THAT F*CKIN CI SO IT PICKS UP THE LATEST COMMIT AS IT SHOULD

* DO NOTHING BUT TRIGGER THAT F*CKIN CI SO IT PICKS UP THE LATEST COMMIT AS IT SHOULD

* regenerated stylesheets

* Resolve some issues with Arc Green

* Fix editor styles

* zeebra stripes

* generate CSS file