Linux/VDPAU: Fix build fail
rpi: Initial stab of HW accelerated JPEG decoding
blobcache: Fix brokeness in pruning algo if we also did heavy disk I/O at the time
rpi/cec: Add more static key mappings
background: Fade in/out at 60Hz
glw: Run font rendering on higher prio than img decode
rpi: Improve GPU assisted JPEG decoder a tad more

In particular make it somewhat error resilient
Add pull command to chlog
pixmap: Remove power-of-two sized loading

We fix this in the UI layers instead
Add some docs for how to build for RPi
glw: Add caching of pixmaps at texture/GPU level
metadata: Don't populate lazy metadata in DB transactions

This will cause other threads accessing the metadb to stall
Improve metadata loading a bit by holding off queries...

... until more data is available
glw: Fix aspect based constraints in container_y
spotify: Don't popup login request when searching if we're not yet logged in
glw/video: Simplify some code
glw/container_y: Fix some additional bugs related to aspect based constraints
glw/container_z: Fix a constraint bug (don't listen to hidden widgets)
http: Improve debugging around cookies

refs #1708
spotify: Fix another issue with login prompt upon search