v0.14.0

Minor Enhancements

• add support for categories (#153) (#233)
• add support for tags (#264)
• Make posts limit configurable (#314)
• XML escape the title field of feed_meta (#306)

Bug Fixes

• Fix feed link when post title contains HTML (#305)

Development Fixes

• Use Dir to list source files (#309)
• Require Ruby >=2.4.0 (#307)