Use safer FileUtils.mkdir_p instead of Dir.mkdir
Refer to entry URL as URI for consistency
Clarify that timestamp altering is done manually
Use full HTTPS address for RubyGems source
Minor changes in README file
Use getter method for entries
Re-add Gemfile.lock (shouldn't have removed it)
Enable compression when fetching feed
Skip entry if pubDate is in the future
Call file with fetch times "state"
Append feed2email signature to email body
Add changelog
Bump to version 0.1.0