fix(WIP): Remove : from WIP

When typing a quick `WIP` commit message, it's easier / faster to omit the colon.

index.js

@@ -19,7 +19,7 @@ var findup = require('findup');
 var config = getConfig();
 var MAX_LENGTH = config.maxSubjectLength || 100;
 var PATTERN = /^((?:fixup!\s*)?(\w*)(\(([\w\$\.\*/-]*)\))?\: (.*))(\n|$)/;
-var IGNORED = /^WIP\:/;
+var IGNORED = /^WIP/;
 var TYPES = config.types || ['feat', 'fix', 'docs', 'style', 'refactor', 'perf', 'test', 'chore', 'revert'];
 
 var error = function() {
@@ -114,4 +114,4 @@ function getConfig() {
   var pkgFile = findup.sync(process.cwd(), 'package.json');
   var pkg = JSON.parse(fs.readFileSync(resolve(pkgFile, 'package.json')));
   return pkg && pkg.config && pkg.config['validate-commit-msg'] || {};
-}
+}