Adding cask for Battery Report

Adding a cask for DssW Battery Report.
Adding cask for Battery Guardian

Adding cask for battery depletion reminder tool from DssW.
updated redis desktop manager to 0.7.5
Merge pull request #2292 from DssW/battery-guardian

Adding cask for Battery Guardian
Merge pull request #2291 from DssW/battery-report

Adding cask for Battery Report
Merge pull request #2293 from Anakros/redis-desktop-manager-0.7.5

updated redis desktop manager to 0.7.5
Add cask for qBittorrent

Free and reliable P2P Bittorrent client.
Add cask for unpkg
Merge pull request #2296 from andrewschleifer/unpkg

Add cask for unpkg
Merge pull request #2295 from pyed/qbittorrent

Add cask for qBittorrent
corrected url
Merge pull request #2297 from vitorgalvao/correct-qbittorrent

corrected url
add navicat casks