Apology for the late response. Please find the update below.
Lite Version:
1. Security release following the correct and secured approach for ajax requests as per wordpress standards.
2. Option to drop or not to drop plugin settings and table on plugin un-installation. This will help in retaining like/unlike counts and settings which can be used in future/upgrading to PRO version
3. Replaced all id attributes by class so that the buttons can be placed in more than one positions inside the template
Pro Version:
1. Includes all the features mentioned above
2. Completely compatible with multisite set up. No need to activate the plugin on each subsite to install the plugin settings.
3. Functionality for automatically adding meta data at the time of post creation
4. Functionality for showing the like/unlike buttons for post excerpts
5. Functionality for allowing/disallowing author to vote against own post
6. Auto-update functionality as per standard wordpress plugin update process
7. Some features for the widgets as well
Both the versions are almost completed and they will be available in max 2 weeks’ time. Your patience is highly appreciated.
Thanks