[eventfeed] Use privileged data storage location by default

Previously, the event feed database was stored under
~/.config/eventfeed.  This commit changes the default eventfeed
database location to ~/.local/share/system/privileged/Events by
default.
Merge pull request #2 from chriadam/master

[eventfeed] Use privileged data storage location by default
Bump version

Also only use the privileged directory if building with Qt5.
Merge pull request #3 from chriadam/master

Bump version
Update yaml