new phpcs jobs for mediawiki/core

Introduce the jobs:
- mediawiki-core-phpcs-lenient
- mediawiki-core-phpcs-lenient-HEAD
- mediawiki-core-phpcs-strict
- mediawiki-core-phpcs-strict-HEAD

'lenient' are permissive and only fail on errors. The 'strict' one would
fail whenever phpcs emit a warning.

The -HEAD versions are meant to only check the modified file, useful on
patchset submission.  Their counterpart are for postmerge/regression
tracking.

bug: 46500
Change-Id: I33ade4239ef185aecc15e10c7f671f183aaf09a3
ruby 1.9 linter for UniversalLanguageSelector

Creates mwext-UniversalLanguageSelector-ruby1.9.3lint

Change-Id: I6b36610b47797cdab8af0ffbec9c06fe4f61605b
get rid of -merge jobs (no more triggered)

Our Zuul setup no more trigger merge jobs since it will fails whenever
it is not able to merge a patchset.  This simply remove the merge jobs
in Jenkins.

Bug: 51395
Change-Id: I0491793b8949eb205b1418fb42c0cd2460569fdb
jobs for wikimedia/fundraising/tools

Change-Id: I4024a262acb2ccb8484011ade5694cb9a980e308