Signed-off-by: Jean-Paul Saman <jpsaman@videolan.org>

Do not handle Range requests at all
This partly reverts 53474be3

Fix tiny 9 byte memleak per Authentication-Info header check if the nonce count option was specified.

Check the server's reply upon successful authentication and validate it (just to make sure that no one is spoofing the server's reply). This will probably fail if qop=auth-int (code needs to be fixed).

Commit changes to m4/private.m4. Please yell (and remove the file from git) if this wasn't supposed to be committed.

Note, this is already done by vlm_Delete() so there is probably a bug around.

Rewrite old command definitions to no longer use those filthy macros. Added all text functionality so the test application runs successfully.

Blending - Added blend benchmarking filter

Overlay - Added text demonstrations

Overlay - Updated test program

Overlay - Extended demonstration program

Overlay - Basic test/demonstration program