fix: do proper cmake detection using -NOTFOUND suffix
Less strict singer selection in duet TXT format

P 1 is now accepted whereas only P1 was before.
Merge pull request #56 from mosteo/master

Less strict singer selection in duet TXT format

I checked all and it looks ok to me.
Use C++ compiler, not C compiler, for determining the version.
Rework findFile logic and add listFiles that can be used for scanning data files recursively, and getThemePaths for listing all theme/data folders.
Load custom fonts from theme/data folders rather than installing them (issue #40).
Revert "Windows installer: Install fonts globally to C:\Windows\Fonts."

This reverts commit 651f4958dd65131625dff0015fc952c22951f662.
Reason: Does not work.
Add missing FindFontconfig.cmake script.
Use duet headers for earlier duet detection in TXT

This way songs are displayed and filtered as duets from the start
Merge pull request #58 from mosteo/master

Use duet headers for earlier duet detection in TXT
periodic Merge remote-tracking branch 'origin/master' into webserver

Conflicts:
	game/CMakeLists.txt was just one line, I took the version
from master