Update to Version 2.0.2

This is an important bugfix release because 2.0.1 stopped working recently.

Changes:
* **IMPORTANT:** Made compatible with the new cmxlgy page structure #19
* Fixed bug that could cause broken zips and cbz files #16
* Slightly improved exploit scan. **IMPORTANT:** If there are pages missing in your backups after the update, you may need to force a new exploit scan. This can be done in the options.
* Updated zip library
* Fixed UI bug, that could cause wrong button sizes and alignment
* Code refactoring. Now checked against JSHint.

RC2 is still being tested. This request will be merged as soon as possible.