Remove OGLL
This change calls `ViewTreeObserver.removeOnGlobalLayoutListener` after
we're finished computing the size of the `GridView` columns and items.
Validate wallpaper double tap.
This change makes sure there aren't any accidental double tap effects by
only following through with the double tap if it occurred when the
wallpaper is touched.
Add missing line
Added get more extensions menu opening play store uri
Same principal as employed within DashClock
synchronized access to the mSubscriptions map
Rename extensions to sources
Changed get more extensions to get sources.
Added exception handling open play store intent.
Fixes #45 - Bad image URL crashes Muzei
Merge pull request #37 from devmil/subscribtions_sync

synchronized access to the mSubscriptions map
Merge pull request #29 from andrew-codechimp/master

Added get more extensions menu opening play store uri
Update gradle builds to modern versions
Merge pull request #17 from adneal/removeogll

Remove `OnGlobalLayoutListener` after computing grid size.
Minor tweaks to get more sources item
Merge pull request #46 from yarian/urinoschemefix

Fixes #45 - Bad image URL crashes Muzei
Merge branch 'master' of https://github.com/romannurik/muzei
Merge pull request #18 from adneal/doubletap

Validate the double tap before toggling the focus of the wallpaper
Accept and tweak eddieringle's patch to disable blur on lock screen
tone down default blur amount
constrain panning amount... this improves presentation of very wide images, mostly keeping them centered
Implement saturation slider