Don't add "Copy to clipboard" item if filters menu is empty.
MainFrm: Cosmetics for stats.

- Always show bitrate statistic in avg/cur style for consistency.
MainFrm: Cosmetics for timers.

- Move DVD timing related things to TIMER_STREAMPOSPOLLER for better
  reliability.
- Save current file position if it differs more than 30s than previous.
  In case when mpc-hc is not properly closed.
Fix possible freeze during DVD playback on XP after
f2b6ade8e8185fdc5908ed88df31e68a106786a9

Refs #4299
Do not try to set channel from WebServer thread.

Fixes #4415
Fix some signed/unsigned conversions that could lead to incorrect sign extension.

Fixes CID 1222029.
Lower the probability of buffer overflows when possible.

Convert to 64-bit integer before performing arithmetic operations on 64-bit builds.

Fixes CID 1222022 and 1222023.
Remember window position: Ensure the window can't be completely hidden after restoring it.

Restore the window at its latest position only it the window is at least partially visible on one enabled monitor.

Fixes #4408.
EVR renderers: Query the IBaseFilter interface of the EVR only once.

Calling QueryInterface insides those functions led to deadlocks in some cases.

Refs: #4213.
DX9 Allocator-Presenter: correctly signal the pending device reset.
Sync renderer: Reset the device on display change.

Refs: #4213.
Avoid extra repaint when resetting the video device.

Update the OSD before pausing and after unpausing.

Refs: #4213.
Fix a deadlock when starting MPC-HC in D3D fullscreen and auto-changing the monitor mode.

Refs: #4213.
D3D fullscreen: Obey "Apply default monitor mode on fullscreen exit" option.

Refs: #4213.
VMR-9 (renderless)/EVR renderers: Improve device reset.

- Fix the display mode flickering when auto-changing the monitor mode.
- Fix auto-changing the monitor mode when starting in D3D fullscreen with "play 0 time" option or the auto-change delay greater than 0s.
- Fix a possible deadlock when starting in D3D fullscreen and "play 0 time" was used.

Fixes #4213 and #4214.
Update translations from Transifex:

 - Basque
 - British English
 - Catalan
 - Chinese (simplified)
 - Croatian
 - French
 - Galician
 - Hungarian
 - Japanese
 - Polish
 - Slovak
 - Spanish
 - Turkish
Cosmetics: Use better IDs from the resource strings.
Minor cosmetic: Fix a typo.
Add IPTV capabilities to the existing Digital TV UI

Signed-off-by: xpc1000 <xavier_portell@hotmail.com>
Digital TV: adapting the channel scan UI for IPTV:

- IPTV: add individual channels
- IPTV: import m3u list of channels
- When saving a new list of channels, remove only the channels of the same type (DVB or IPTV) (replace option)
- New option "Update" for adding the new channels and updating the existing ones without loosing the personalization already done (for both DVB and IPTV)
- Navigation panel: tabbed filters for DVB-t, IPTV and Radio