Regression - indentation removed on multiline parsons blocks

[bnmnetp]

This is a regression from the fix added in #115

See line 823 of the current parsons.js:

      // Consecutive lines to be dragged as a single block of code have strings "\\n" to
      // represent newlines => replace them with actual new line characters "\n"
      //codestring = codestring.replace(/\\n\s+/g,"\\n"); // remove leading spaced if more than one line in a code block - added in below to not change the codestring
      this.code = code.replace(trimRegexp, "$1").replace(/\\n\s+/g,"\\n").replace(/\\n+/g,"\n");
      this.indent = codestring.length - codestring.replace(/^\s+/, "").length;

That old fix needs to be merged back in to this new code added on 4/4/16 by @ericsonga

[bnmnetp]

fixed