Most probably you are using old Kendo UI Mobile files in your project. I would suggest you to download the latest files from the website and replace the old files.
You can also check the following forum topic discussing issue similar to the one you are describing:
As for the swipe issue that you are having - the left-right swipe in iOS7 is reserved for back navigation, so we have disabled this in the drawer, as this can cause some unexpected behavior in the application
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