FGManagerBDA.h: move define where is needed.
Fix format type specifier.
Move variable declarations closer to where they are used.
Update Little CMS to v2.7 (git 8174681).
PPageFileInfoClip: Various cosmetics.

 - Reduce the visibility of member functions and variables.
 - Simplify the initial focus handling.
 - Various clean-ups.
PPageFileInfoDetails: Various cosmetics.

 - Reduce the visibility of member functions and variables.
 - Simplify the initial focus handling.
 - Various clean-ups.
Properties dialog: Make some strings of the "Details" tab translatable.
Properties dialog: Convert the creation time to the local timezone.
Don't force any background color for the Shockwave graph.

This commit fixes #1747.
WebUI: Inform the web interface that no audio stream is available.