Merge pull request #822 from sexnothing/develop

Search module update
Updated service API for database
Merge pull request #827 from sexnothing/develop

Search module update
Fix for remote file download
Merge pull request #829 from sexnothing/develop

Search module update
Completed media download API
Merge branch 'develop' of https://github.com/pi-engine/pi into develop
piside-nav update