Merge pull request #265 from Maledictus/master

[Blasq Vangog] support delete collections
[LMP MTPSync] Only get storage if not available.
[LMP MTPSync] Asynchronous uploading.
[Util] Filter by all columns, fixes #1308.
Merge branch 'master' of github.com:0xd34df00d/leechcraft
[WP] Avatar download reply result check
[WP] Preventing reply leak
[LMP] IUnmountableSync::uploadProgress().
[LMP MTPSync] Notify about file upload progress.
[LMP] Handle uploadProgress().
[LMP] Handle single file upload progress in UI.
[LMP MTPSync] Prevent leaking callback data.
[WP] Style fixes

TwitterUser::Avatar is Avatar_ now
[WP] Reverting to auto in reply creation
[WP] Removed public data TwitterUser::Avatar_

Fixed misleading signal name
[Util] Added DelayedExecutor class.
[Azoth] Reconnect action, closes #1309.
Merge pull request #266 from rayslava/master

[WP] Some style fixes and checks
[Interfaces] More item roles.

Added TracksList and SingleTrack item types.
Added TrackInfos role.

Refs #1314.
[LMP] Handle TracksList and SingleTracks radio types.

Refs #1314.