Notify with line instead of linenumber

The difference between linenumber (instead of line) and column has
annoyed me for a while.
Continue supporting linenumber but show a deprecation notice
Merge pull request #243 from rodjek/refactor_out_linenumber

Refactor out linenumber in problems
Merge branch 'master' into refactor_data

Conflicts:
	lib/puppet-lint/plugins/check_classes.rb