Add International date format support (#25)

* Add European date format support

* Update README.md

* Update index.js

* Update date regex

Author: gotbahn

README.md

@@ -84,7 +84,7 @@ A cool description (optional).
 ## unreleased
 * foo
 
-## x.y.z - YYYY-MM-DD
+## x.y.z - YYYY-MM-DD (or DD.MM.YYYY, D/M/YY, etc.)
 * bar
 
 ## [a.b.c]

index.js

@@ -4,7 +4,7 @@ var removeMarkdown = require('remove-markdown')
 
 // patterns
 var semver = /\[?v?([\w\d.-]+\.[\w\d.-]+[a-zA-Z0-9])\]?/
-var date = /.*([\d]{4}-[\d]{2}-[\d]{2}).*/
+var date = /.*[ ](\d\d?\d?\d?[-/.]\d\d?[-/.]\d\d?\d?\d?).*/
 var subhead = /^###/
 var listitem = /^[*-]/