Update to v0.5.0

Change: Sorting by text now groups symbols together
Change: Changed some log messages from info to verb
Change: custom_install_content_func is now called even in the absence of
an online content URL.
Change: Download list now hides GET calls.
Bugfix: Fixed removeContentItem to only need to match content_id, rather
than be completely identical
Bugfix: Spotlight stats tab now shows correct stream versions
Bugifx: Corrected layout when group by sort is disabled
Bugfix: Prevented overflow of content name from content tile
Bugfix: Sorting by name and author now ignores case