Better logging in salt.utils.subdict_match
Support delimiter overrides for grains{,_pcre} and pillar matchers
Fix functions in match module

Likely due to some recent changes in the matchers, the
match.grains{,_pcre}, match.pillar, and match.ipcidr functions were
broken. This commit fixes them and also adds the ability to override the
delimiter in select functions. Additionally, the caught exceptions in this
module are now being logged instead of fading into the aether.
Fix versionchanged directives

I mistakenly neglected a space between the '..' and 'versionchanged'
rename variable to fix error introduced in cherrypick
Merge pull request #6938 from terminalmage/0.16

Cherry-picked #6753 and added missing functions to make it work