Login attempts, CDN images and a fix

1. Login attempts open-classifieds/openclassifieds2#960
2. Fixes review less than 5 characters open-classifieds/openclassifieds2#980
3. Moved category action_index view
4. CDN images open-classifieds/openclassifieds2#961 and commit on [BB](https://bitbucket.org/neo22s/open-classifieds-private/commits/a96a6f24485f02be85bff80460c5b74ea9dcea42) for premium themes.

 eShop was a few commits behind OC for this. From time to time forgot do the same on eShop :(