Also renames `forgot_password` translation key to
`forgot_password_title` and `forget_password` to
`forgot_password`

Includes entry in CHANGELOG about the breaking change
(and some markdown fixes in there)

* add delete branch track on pull request comments

* don't change vendor

* social_register_hepler_msg -> social_register_helper_msg

* register_hepler_msg -> register_helper_msg

* Redirects for renamed repos

* Remove unused phrase from locales

* track labels changed on issue view & resolved #542

* add missing head comment & sort & fix refresh

* docs: update translation on notification page for zh-CN

* use international resources

「与」修改为「于」

* Moved conf assets into options folder

* Dropped old bindata

* Started to integrate options bindata and accessors

* Do not enforce a builtin app.ini

* Replaced bindata calls with options

* Dropped bindata task from makefile, it's the generate task now

* Always embedd app.ini to provide sane config defaults

* Use sane defaults for the configuration

* Defined default value for SSH_KEYGEN_PATH

* Dropped "NEVER EVER MODIFY THIS FILE" header from app.ini

* Fixed new paths in latest test additions

* Drop bindata with make clean task

* Set more proper default values

* Check if file is a symlink with web editor (#3687)

* editor checks for symlinks

* translate file_is_a_symlink message

* credit translation author

* fix error constant

* Added rel="noopener" to target="_blank" hrefs

* Replaced gogs.io/docs with docs.gitea.io

* resolved #296

* Indentation fixed

- Update locales

We can look at the PushCommits object to see how many commits were
included in a commit, and add some template logic to only show the
comparison link when there are at least 2 commits in a push. We also
correct the link to display the number of commits.

We have new tab, but we had no entry. That's why it was showing "code"
(lowercase) as this is text id, where we were expecting properly title cased
"Code" to be shown in English version.

Also add Polish translation "code=Kod".