v1.3

### 1.3
* Security: Subtitle uses esc_html by default
* `Before` and `after` arguments for `the_subtitle()` template tag
* CSS enhancement

Signed-off-by: Ralf Hortt <me@horttcore.de>
Merge branch 'master' of https://github.com/Horttcore/WordPress-Subtitle

Conflicts:
	README.md

Signed-off-by: Ralf Hortt <me@horttcore.de>