* Added model objects for emoji
* Added database tables for emoji
* Added settings for custom emoji
* Added serverside APIs and unit tests for custom emoji
* Added additional validation to catch duplicate emoji names earlier on
* Added additional validation to prevent users from adding emoji as another user
* PLT-2058 Debugging incoming web hook content
This change debugs contents of incoming webhooks using l4g.
The problem is that in order to debug the request body, it neads to be
read. And a Reader can only be read once. Hence, the body is only read
for Debugging if it is actually enabled. Furthermore, a new reader is
created from the content of the old reader in order for the rest of the
method to work as usual (with or without debugging).
The debug statement is wrapped in a closure, so that the content is
only copied if Debug is actually enabled.
It is not possible to return `(string, string)` from the closure to
`l4g.Debug()`. That is the reason the debugging is not done with `=%v`,
but the translations strings end with a space.
I tested the change with a `application/json` HTTP header as well as
`payload=`
The debug method is extracted into util/log.go in order to be re-usable
for debugging `io.Reader`
* Added a config flag to turn off incoming webhook debugging
Setting `EnableWebhookDebugging` to false in the `config.json` will
disable the printing of the content of incoming webhooks to the console
* Defaulting webhook debugging to true
* Added the setting of debugging incoming webhooks to the system console
* Add slash command for sending email invites
* Add response for empty message and trim commas
* Check for @ in email addresses before sending
* Update invite people error message
* PLT-1800 Load server side locale from the config.json
* Add support for locales with country specifics
* Fix localization on served locale file as plain/text
* Remove github.com/cloudfoundry/jibber_jabber as vendor dependency
* Fix get locale on login_controller
* PLT-1800 Load server side locale from the config.json
* Add support for locales with country specifics
* Fix localization on served locale file as plain/text
* Remove github.com/cloudfoundry/jibber_jabber as vendor dependency
* PLT-1800 Load server side locale from the config.json
* Add support for locales with country specifics
* Fix localization on served locale file as plain/text
* Split out push and email notification logic, always send push notifications on mention
* Add user setting to control push notifications
* Minor changeto simplify code
