Remove local wiki copy on repo transfer. Fixes #2558

Bump git-module. Fixes #2589

Fix for server error on release page when a user deleted their account

When repository contains a Slack type hook,
it changes original payload content.

This patch fixes it by using a local object to store
newly created Slack payload instead of assigning
back to the same variable.

Implementing the "theme-color" meta tag.

Used by Android >= 5.0 to make the top bar colored.

Reference: https://developers.google.com/web/updates/2014/11/Support-for-theme-color-in-Chrome-39-for-Android

Fix tab index on new issue/comment form

Make commits tab active when on diff page

Make issue title smaller

Fix #2221 LDAP username attribute must be fetched

This is fix-up for 573305f. Forgot to fetch AttributeUsername value from the
LDAP server, so the setting was effectively not working as intended.

Enable syntax highlighting on diff view

Add avatar arrows to both pull request and issue forms

Workaround delete folder on Windows.

Add an important note about mapping the ssh port on the container to the host

fixes #2563

optipng

Add small arrows on issue comments pointing to users avatar

Feature/markdown custom url scheme

Fixes small typo

Hide other teams & repos from organization page