Sending -s to git show when getting commit info.
Removed commented code.
Added support for configurable email subjects.
Mention Reply-To header in README.
Changed name of a nested function.
Set Reply-To header to commit author.
Implemented subject prefixing.
Numbering emails if more than 1 commit was pushed.
Made git_rev_parse() cut off the last \n character in the return value.
Added more files to ignore.
Removed logging of configuration variables.