use label hasContintPackages for pep8 and pyflakes jobs

pep8 and pyflakes are installed on slaves using the puppet class
contint::packages which is not installed on every slaves (only the
production / continuous integration ones).  The new label
hasContintPackages flag that.

Updated jobs:

analytics-asana-stats-pep8
analytics-asana-stats-pyflakes
analytics-check-stats-pep8
analytics-check-stats-pyflakes
analytics-editor-geocoding-pep8
analytics-editor-geocoding-pyflakes
analytics-gerrit-stats-pep8
analytics-gerrit-stats-pyflakes
analytics-glass-pep8
analytics-glass-pyflakes
analytics-reportcard-pep8
analytics-reportcard-pyflakes
integration-jenkins-pep8
integration-jenkins-pyflakes
labs-nagios-builder-pep8
labs-nagios-builder-pyflakes
mw-tools-codeutils-pep8
mw-tools-fluoride-pep8
mw-tools-fluoride-pyflakes
mw-tools-release-pep8
mw-tools-release-pyflakes
operations-debs-adminbot-pep8
operations-debs-adminbot-pyflakes
operations-debs-ircecho-pep8
operations-debs-ircecho-pyflakes
operations-dumps-pep8
operations-software-pep8
operations-software-redactatron-pep8
pywikibot-compat-pep8
pywikibot-compat-pyflakes
pywikibot-core-pep8
pywikibot-core-pyflakes
pywikibot-i18n-pep8
pywikibot-i18n-pyflakes
sartoris-pep8
sartoris-pyflakes

Change-Id: I9a24753e45fe41d28b7ee7bf22993a33017ac010
phplint jobs require slave scripts

The php linting template is using git-changed-in-head which is a slave
script.  Mark the jobs with label hasSlaveScripts.

Updated jobs:

integration-docroot-phplint
labs-incubator-phplint
mw-skins-erudite-phplint
mw-skins-mediawiki-strapping-phplint
mw-skins-webplatform-phplint
mw-tools-codeutils-phplint
mw-tools-dippybird-phplint
operations-mw-config-phplint
translatewiki-phplint

Change-Id: If651f9da1d8ca0ff5a5292265cc0c8d75156221f