simple color change

Created by: freexploit

issue #3889 (closed) ask for a lighter color on help-inline and help-block.

docs/assets/css/bootstrap.css

@@ -1246,7 +1246,7 @@ select:focus:required:invalid:focus {
 
 .help-block,
 .help-inline {
-  color: #555555;
+  color: #999999;
 }
 
 .help-block {

less/forms.less

@@ -352,7 +352,7 @@ select:focus:required:invalid {
 
 .help-block,
 .help-inline {
-  color: @gray; // lighten the text some for contrast
+  color: @grayLight; // lighten the text some for contrast issue #3889 set a lighter color
 }
 
 .help-block {