UTF8 fixes, handle piped input, missing YAML headers
Add min_matches setting to default config
FIxes for broken regex, suggest returning nil
Fixes for broken regex, suggest returning nil
Merge branch 'develop' of github.com:ttscoff/jtag into develop

* 'develop' of github.com:ttscoff/jtag:
  FIxes for broken regex, suggest returning nil
allow adding YAML to posts without
deleting products
Fix for error when the (supposedly optional) exclude_tags key wasn't in _config.yml
version bump
Merge branch 'release/0.1.8'

* release/0.1.8:
  version bump
  Fix for error when the (supposedly optional) exclude_tags key wasn't in _config.yml
  deleting products
  allow adding YAML to posts without
  Fixes for broken regex, suggest returning nil