Prefix deprecation warning versions with `Salt` for clarity.
The format version holder does not get auto populated in the `ret` warnings.
Adapt remaining test cases which relied on old versioning scheme.
Merge pull request #7607 from s0undt3ch/features/named-salt-versions

Fix remaining test cases and some minor fixes for named versions support
Merge pull request #7608 from s0undt3ch/hotfix/lint

Some PEP8/Pylint fixes
Convert augeas values passed to setvalue() to strings

This fixes an issue where numeric values would fail because the
setvalue() function tries to compare them using str.startswith().
Merge pull request #7609 from terminalmage/issue7605

Convert augeas values passed to setvalue() to strings
Pylint fixes
Detect "FIX" comments with pylint
Unify filename var with other _prepare_*() functions
Fix indentation in YAML example

Mixed 2 and 3 space indentations.
Verticalize code
Sink is a valid unused argument
Merge pull request #7611 from holmboe/virt-pylint

Pylint fixups
Idiomatic regexp match
Merge pull request #7612 from holmboe/idiomatic-match

Idiomatic regexp match
Add auto auth system for testing eauth
Fix PEP-8 E221, E241, E302, E303, W291 and W293
Let's not trigger PEP8 errors in salt.version for now. This will be better handled in the near future.