Standby: stop service as soon valid time is received by transponder

Previously we wait 60 seconds to try to get the time when the box is
started in standby. After these 60 seconds the service running in the
background is stopped even when no time is received (due to bad weather?).
Now the service in the background is stopped as soon a valid time is
received by the transponder. Usually this is earlier that the specific 60
seconds.
Standby: Use timerhandler.ready() to check if time is valid

Instead of checking for the current year > 1970
Revert "Standby: Use timerhandler.ready() to check if time is valid"

This reverts commit 59e4cece76ae619baf90531fbda03b23e7bbc140.

Sorry it was not intended to commit this here
Standby: Ensure to stop service when time is known when startup to standby
TimerList: Solve position issue for alternatives

When a timer was set for alternatives in the timer list it was displayed
as a 0.0 degrees positioned satellite. Now it will take the first service
from the alternative list as position instead via the Alternative tool.
SoftwareUpdate: Introduce a update disclaimer

That clarifies that we are working with nightly builds... When you do not
understand you cannot upgrade, when you understand you can update. The
disclaimer message can also be not shown again, but then you have an extra
disclaimer option in the upgrade menu.
Make software update disclaimer text translatable
Show progress while initalizing or checking harddisk

As suggested by ims:
http://openpli.org/forums/topic/34575-check-filesystem-messages/#entry437618

Display the job view window immediately, so that the user gets immediate
feedback of what's going on. The job will still run in background.
MovieList: Add groupwise sort mechanism and set it to be default.

"Groupwise" sorts recordings descending by date and other items
ascending by name.

My wife was complaining that her MP3s were always being show in a weird
order, and that she had to change it for each folder again and again.
The groupwise sort will do what she expects: In a directory with just
recordings, they'll be ordered by date, and a directories containing
MP3s or DVDs are automatically ordered by name.

For lack of a better name, it's currently called "default" (suggestions
welcome). It also needs an nifty icon for skins too.
Use CFile in a few more places

CFile prevent resource leaks by always closing the FILE object via the
destructor. Improves readability too, by not cluttering the code with
fclose calls.

Also fixes a memleak in jpeg_save, when file failed to open the jpeg
encoder wasn't destroyed.
Enable parental control for userbouquets
Use cancel instead of close when pin is required on bouquet

Brings you back to the currently played not previewed service and bouquet
instead of the bouquet list.
Merge branch 'master' of git://git.code.sf.net/p/openpli/enigma2