dvbapi: TCP mode and pc-nodmx improvements

patch by perexg:
1) In the TCP listen mode, the communication might stall, because the dvbapi_open_device() tries to open a non-existent linuxdvb device.
2) Handle the connection close file-descriptor event more correctly.
3) Do not create the /tmp/ecm.info for the TCP listen mode and pc-nodmx mode.


git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@9765 4b0bc96b-bc66-0410-9d44-ebda105a78c1
added a two seconds delay between oscam shutdown and restart.

Valid for restart off oscam out off webif of by an auto restart due to segfault if -r 2 option is used.

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@9766 4b0bc96b-bc66-0410-9d44-ebda105a78c1