MFH: r549539

audio/beatslash-lv2: Fix build on some systems

Waf warning about duplicately-installed files somehow caused failure to find some files later.
This commit adds the patch to prevent duplicate file installation. This fixes the warning and hopefully fixes poudriere build.
I couldn't reproduce this failure in my poudriere.

Also:

• Strip binarires
• Fix WWW

Approved by: ports-secteam (fluffy)