GUI - syntax fix indentation of while do loops

```
y = 1
x = 2
while y<10 do
    y+=1
    print y
    while x<20  do
        x+=y
        print x
      end
    end
    print y
    print x
```
Now indents correctly

Author: samaaron

app/server/ruby/vendor/ruby-beautify/lib/ruby-beautify/config/ruby.rb

@@ -52,7 +52,7 @@
                    :nest_except => [:double_quote, :single_quote, :regex, :back_tick])
 
   ruby.add_matcher(:standard,
-                   /((#{start_statement_boundary}(module|class|def))|#{pre_keyword_boundary}do#{post_keyword_boundary})/,
+                   /(#{start_statement_boundary}(module|class|def))/,
                    /(((^|;|\s)end)|#{continue_statement_boundary}(rescue|ensure))\b/,
                    :nest_except => [:double_quote, :regex, :backtick])
 
@@ -61,6 +61,11 @@
                    /(((^|;|\s)end)|#{continue_statement_boundary}(rescue|ensure))\b/,
                    :nest_except => [:double_quote, :regex, :backtick])
 
+  ruby.add_matcher(:do,
+                   /#{pre_keyword_boundary}do#{post_keyword_boundary}/,
+                   /(((^|;|\s)end)|#{continue_statement_boundary}(rescue|ensure))\b/,
+                   :nest_except => [:double_quote, :regex, :backtick, :more])
+
   ruby.add_matcher(:begin,
                    /((#{start_statement_boundary}begin)|(#{continue_statement_boundary}(ensure|rescue)))\b/,
                    /(((^|;|\s)end)|#{continue_statement_boundary}(rescue|ensure|else))\b/,