fix(ios): excluded fragment delimiter from encoding

[hbugdoll]

Fixes #329.

Description:

• SFSafariViewController has a problem with encoded # as fragment delimiter, which was introduced in module version 3.0.2
• excluded # from encoding

Example:

const webDialog = require('ti.webdialog');
const win = Ti.UI.createWindow();

win.open();
webDialog.open({
   url: "https://titaniumsdk.com/api/modules/webdialog.html#methods_open",
});