Show also the instant recordings when in movie infobar
When closing standby screen also remove record_event

When the RecordTimerEntry Quitmainloop is activated while the box is in
standby when coming out if standby the notification is removed, but there
is still a record_event left in Navigation that still may shut down the
box after a recording event ends which is set as an auto recording.

Now also only the notification and the record_event is removed as the
RecordTimerEntry Quitmainloop is really activated.

For more details see this thead on our forum:
http://openpli.org/forums/topic/29269-solo2-after-a-timer-box-is-going-to-deep-standby/
Network.py: Remove unused imports, cleanup imports

Get rid of the evil rename-while-import like "from os import path as os_path"
Remove some imports and vars that weren't being used.
elock: Remove unused "pid" member
filepush: Use a condition instead of restarting a thread on skip

pause/resume is used (exclusively) to be able to skip. The contract
is that nothing is being written after "pause". Instead of stopping
the complete thread, just put the thread into a suspended mode using
a condition/mutex pair on "pause", and release it on "resume".

Starting a thread takes a whole bunch of resources, so needlessly
destroying and creating threads is really bad idea. This should
improve "skip" performance a bit, because the caller no longer needs
to wait for the filepush thread to start.

TODO: Capture the condition/mutex into a C++ class.
Merge branch 'master' of git://git.code.sf.net/p/openpli/enigma2