Test paths with backslashes
Add FileExists() function to check for skin resources
Add 'bitstrip' meter implementation
Refactor + clean up
Add ToString() method for printing Meter information
Update CalcUnits() implementation (use math.ceil)

This should be a bit more intuitive by mapping 1-100% to units. When units = 0, the 'mute' OSD should be shown.
Update project files for Bitstrip implementation
Remove MeterWnd tests and use VolumeOSD implementation instead
Add colorized log messages
Update Meter header for ToString()
Add error check for image loader
Log message and return NULL when background can't be loaded
Improve error handling in LoadMeter
Finish Meter loading routines
Reorganize test skin
Update OSD background image
Add VolumeOSD skeleton implementation