Fix incorrect drone branch for pull requests

Fixes #607
Adjust Slack message format to match HipChat's

Also add some tests for formatting. See #586.
Merge pull request #608 from shopa/fix-wrong-drone-branch

Fix incorrect drone branch for pull requests
Add docker section in .drone.yml with net option
Merge pull request #617 from floatdrop/docker-section-in-yaml

Add docker section in .drone.yml with net option
Wrap ssh cmd in quotes to prevent execution of &&-chained commands on local machine
fixe #620
Merge pull request #622 from bradrydzewski/master

fixes #620
fixed missing live console output bug on rebuild
Fix failing unittest
Merge pull request #623 from daMupfel/master

Fixes #448 missing live console output bug on rebuild
quick fix for reloading page if succesfully started a rebuild of a commit
hide rebuild button if in Started or Pending state
Merge pull request #626 from daMupfel/quickfix_rebuild_page_reload

quick fix for reloading page if succesfully started a rebuild of a commit
support for gitlab

fix for #627
Merge pull request #628 from greenify/patch-1

recognize gitlab repos
altered mysql code to use `mediumblob` instead of `blob` to avoid 64k limit
Merge pull request #631 from bradrydzewski/master

altered mysql to use `mediumblob` instead of `blob` to avoid 64k limit
excluding of unused transformation to []byte

A Readers are more flexible and result in faster code that uses less memory
Merge pull request #632 from takama/master

excluding of unused transformation to []byte