ENH: allow recursive tag substitution in action files.
DOC: ChangeLog for recursive tag substition
BF: ensure dates in email are in the C locale. Thanks iGeorgeX
DOC: credits for gh-70 fix
ENH: remove stats of config files and use results of SafeConfigParserWithIncludes.read to facilitate meaningful error messages
Merge pull request #196 from grooverdan/bf-gh-70

date format in emails: use LC_TIME=C. Close #70
DOC: s/defination/definition/g learn to spell
DOC: missing cinfo tags are ok. Log error for self referencing definitions
BF: log error only if there were missed config files that couldn't be read
Merge pull request #197 from grooverdan/bf-gh-153

ENH: remove stats of config files
Merge pull request #194 from grooverdan/defination-substitution

ENH: Allow recursive tag substitution in action files