Remove execution bit on source files

Some c and h files had the execution bit set. It was a mistake.

diff --git a/include/conf.h b/include/conf.h
old mode 100755 (executable)
new mode 100644 (file)

diff --git a/include/defs.h b/include/defs.h
old mode 100755 (executable)
new mode 100644 (file)

diff --git a/include/extern.h b/include/extern.h
old mode 100755 (executable)
new mode 100644 (file)

diff --git a/include/info.h b/include/info.h
old mode 100755 (executable)
new mode 100644 (file)

diff --git a/realtime.c b/realtime.c
old mode 100755 (executable)
new mode 100644 (file)