Remove unused string.
Avoid using hardcoded URL for the website.
Graph builder: Weaken the filter duplication check introduced in 2ccec30a86a326a86af9649ba5b0695c17f90cc8.

Only check for duplication if we already have the same filter with a DO_NOT_USE merit. In other cases, the merit based ranking tells us which filter should be chosen.

This commit fixes the case where external filters were not used although their internal counterparts were disabled.
Added support for E-AC3 (DDPlus) bitstreaming (HDMI).
Updated Catalan translation.

Refs: #2408.
Updated German translation.
Add missing brackets.
Updated Romanian translation.

Refs: #2050.
fixed info in Compilation.txt
(but b)
Small fix for E-AC3 bitstreaming (HDMI)
Fix for 82804b1fa2
MpaDecFilter: more correct dwChannelMask for E-AC3 HDMI.
Contrib: Added option to show the git log instead of the hash to the rev2hash.sh script.
MpaDecFilter: changed dwChannelMask for E-AC3 HDMI again (thanks to Aleksoid1978 for the tests).
Update changelog.
Updated Catalan translation.

Refs: #2408.
Updated Polish translation.
MpaDecFilter: improved bitstriming for E-AC3 HDMI.
cosmetics
updated Ukrainian translation by Arestarh