newcamd: Fix regression introduced in r8455.

This restores correct functioning of newcamd when mgclient setting
is enabled.

Fixes ticket #3209.

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@8470 4b0bc96b-bc66-0410-9d44-ebda105a78c1
newcamd: Prevent memory leak when clearing struct s_ptab.

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@8471 4b0bc96b-bc66-0410-9d44-ebda105a78c1
Allow card system modules to allocate per reader private data.

This is preparation for moving card system specific variables out
of struct s_reader into private structures accessed only from
the card system module.

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@8472 4b0bc96b-bc66-0410-9d44-ebda105a78c1