DVB: Fix default encoding for EPG informations.

This commit fixes ticket #1953.
Silence some warnings.
DVB EPG: Skip empty extra description.
Add tooltips in the information panel.

Useful for long lines since they are truncated.

Ticket #728.
Update changelog.
updated Russian translation
PPagePlayback: Change "unit(s)" to "%" for volume steps.
Filters: debug log cosmetics
Allow the speed steps to be configured from the Playback options.
This commit fixes re-opened ticket #1004.
Updated simplified Chinese translation.
Updated French translation.
Updated Polish translation.
fix typo
update patches and delete the unmaintained icl12.diff
update Changelog.txt and add Windows 8 in the docs
DVB EPG: Optimize in the string parser.

Based on a patch by JanWillem32.
DVB: Improve log messages

Signed-off-by: xpc1000 <xavier_portell@hotmail.com>
Options->capture: improve error management.

This commit fixes ticket #2105.

Signed-off-by: xpc1000 <xavier_portell@hotmail.com>
DVB: Graph construction improvements

Check automatically if tuner and filter functions are performed by the same filter and build the correct filter graph automatically.

Signed-off-by: xpc1000 <xavier_portell@hotmail.com>
DVB: Improved channel switching behavior and error management.

Ticket #2658.
Signed-off-by: xpc1000 <xavier_portell@hotmail.com>