Remove D2VSource.  It's unmaintained and basically unused.
Merge pull request #40 from XhmikosR/remove-d2vsource

Remove D2VSource
Update LAV Filters to v0.58.1.

This commit fixes #2239 #2485 #2492.
Fix a typo in German translation.
Add support for playing from standard input.

Use "-" as a special filename to designate the standard input.

Examples:
 > mpc-hc.exe - < sample.ts
 > a_prog.exe | mpc-hc.exe -

This commit fixes ticket #3107.
Improve the infinite recursion detection when parsing playlists.

The parser was sometimes too strict and rejected valid playlists.