Coding standards fixes.
Merge pull request #2533 from maximal/patch-1

Coding standards fixes.
added code coverage using scrutinizer.com
Pjax container only required on first load.

Pjax inserts the response HTML into the container, it doesn't replace it.
So any subsequent pjax requests duplicate the container.
Unused?
Update .scrutinizer.yml
Further coding standards fixes.
removed duplicate arguments from base formattter
Edited the existing instructions

Didn’t touch the end yet, with the TBD et al.
Merge pull request #2535 from maximal/patch-1

Further coding standards fixes.
Closing and opening braces in Yii2 coding standards.
fixed Migration::execute() to use params correctly
Merge pull request #2536 from maximal/codestandards

Closing and opening braces in Yii2 coding standards.
Update authorization.md

fixed typo in one of the RBAC TYPE_OPERATION examples.
Merge pull request #2538 from Jasrags/master

Update authorization.md
Merge pull request #2534 from Alex-Code/pjax

Pjax container fix
minor css fixes.
Debug module docs including custom panel example, profiling docs in logging
Removed context section from logging docs
Fixed issue with  preventing  from clearing events and behaviors on clone