Bug fix. If precision is not set it is 5 by default which causes alignment issues.

twbs/bootstrap-sass#409

Author: vukoje

Diff for: generators/app/templates/gulp/_styles.js

@@ -31,7 +31,8 @@ var buildStyles = function() {
   };
 <% } if (props.cssPreprocessor.extension === 'scss') { -%>
   var sassOptions = {
-    style: 'expanded'
+    style: 'expanded',
+    precision: 10
   };
 <% } -%>