Added check to frontend startup to enter standby mode immediately if an automatic start was detected.
This basically involves checking the following:

*  Is a backend also running on the same machine?
*  If it's the master backend, is the current time close to the wake-up time?
*  If it's a slave backend that is set up to be woken automatically, is the current time close to start time of the next recording scheduled for this host?
Fix FFmpeg Build for win32/msvc
Add missing include.
Merge branch 'master' of https://github.com/MythTV/mythtv into devel/webfrontend