[PVR][Language] use "icon" for all channel icon related settings and dialogs instead of "thumbnail"
[scrapers] Replace Buffers before parsing XSLT nodes
Merge pull request #4071 from da-anda/pvr-channelicon

[PVR][language] use "icon" for all channel icon related settings and dialogs instead of "thumbnail"
Merge pull request #4074 from ScudLee/ReplaceXSLTBuffers

[scrapers] Replace Buffers before parsing XSLT nodes