Squash execute permissions on non-executable files.
diff --git a/AUTHORS.txt b/AUTHORS.txt
old mode 100755
new mode 100644
diff --git a/src/libprojectM/MilkdropPresetFactory/Expr.cpp b/src/libprojectM/MilkdropPresetFactory/Expr.cpp
old mode 100755
new mode 100644
diff --git a/src/libprojectM/projectM.cpp b/src/libprojectM/projectM.cpp
old mode 100755
new mode 100644